lamysa, hjere is the answer to your question now that you have elaborated a bit.
rashis words contain the mesora of the geulah...through his ruach hakodesh combined with daas loshon hakodesh, being kadosh himself (not a navi) and daas torah. Meaning: Hashem is with him...and there are many sodot of rashi, his ktav is holy, but not as nevuah, inspired, to pass the mesora, in katnus and in gadlus at the same time. most see katnus..a nice pshat in rashi, move on. but then there is to seek the ultimate gadlus in rashi. every year we get closer in this inyan, rashi will become more and more potent...just like figuring out a gemara, until the whole thing clicks. we are in 5771. the rishonim can be senm to express the same year in unison. it is not a prediction. it is a checkpoint, one that at the same time can show a beauty of torah to see it in the words...again much like a gemara. then someone tears down your gemara, a kasha you can get out of...do you quit learning the gemara? is the gemara wrong? did it destroy your emunah? were you predicting a new halacha with your pshat? no. you were trying to understand...even daniel tried to understand this very thing, and fell before getting it right, and the rashis say you will fail. so what do you do? 5771 comes and goes...keep trying, can it be this year...tzipia leyeshua....ad 120. or when he actually comes...you shoudl look and wait and seek to hear him every day says the gemara. thats what im doing. in the world, i see it. so i checked the sources out of curiosity...and i saw it there too. i promise you...when moshiach does in fact come...rashis words will be on the money...with a fantastic pshat...one that blinds will greatness, and his greatness...they werent wrong...but you can only take it one year at a time...some times are a greater es ratzon than others...we seem to be in a prety big es ratzon...should i not check to see how the rashi and ramban would work out? they worked out, and will work out for the next few years...once again, not a prediction...kind of like checking an equation/work...to which the gra refers to this system as mysa v cheshbon. like i said when moshiach comes, you will look at that rashi, see gadlus, and see rashi had it there the whole time...and it wasnt a prediction...it was just there...with him...with his torah...within his words...as Hashem is with him...in gemara, rashis words contain every deah, if you look..and you apply the same penimius methodolgy to find these gems..and every time...its there with rashi...he is a face of torah, lefi peshuto he says...and that face has 70 faces. rashi is not wrong, he just may temporarily misunderstood or underestimated...but he pulls through time and time again, in daniel, in gemara, in chumash..everywhere....and you can learn a rashi, not just read and translate a rashi. you can darshen a rashi...Hashem put the deas there..and rashi was the kli that made it possible. thats why i love rashi...he is alive, torah as tefilah...torah sh baal peh mamash, poetically...not only technically...katnus for the layman, gadlus for the gadol..a kli for even eternal torah. the cheshek to torah on this level, doesnt destroy emunah, quite the contrary, it compells you to learn and investigate more. as for this rashi, its just another flavor of rashi...as you said, there is halacha, agadata, sugia, and one topic is moshiach..which rashi gets into quite a bit, also of which he is a majaor yesod, and is trying to be understood, and conveying those secrets. rashi itself, is a lumdus...even if on lumdus. there is nothing greater to me than learning a sugia, very iyun and putting it ands seeing it clearly in rashi...ive studied mashiach alot, as i am a student of the gra...kol hator. and i cant wait to see pshat in rashi and ramban. and i have the chutzpah to say...this year could be the geulah, from what i see feel and hear...and if it is...i will say "rashi had it" and i was zoche to see it in rashi...and if 5774 comes and goes...the next time i get the itch that this is it, in my expectation/longing/waiting/hoping...you better believe im looking up rashi..as the sugia goes on...rashi goes on...we all go on...and just as i can see rashi on que in the sugia i love the most in shas, shnayim ochzin..which i can show you even tangibly...bezrat Hashem me, or someone will show me in my lifetime...rashi on que...so far im alive...and i will strive until moshiach comes, or 120. but nobody will tell me, that at least my hava minas in rashi werent beautiful..sometimes a hava mina can be worth the sugia itself...just read the first mishna in bava metzia and rashi there...there is no ramai in the mishna? nice hava mina rashi...you just gave me the entire sugia. and i think you are right. the mishna is helech.