While it's a lovely idea to think that would update the stats of older Pokemon so that they can compete with some of the amazing new ones, it's just not going to happen. They have never altered the stats of the Pokemon (barring the special split in Generation 2), and even if they were to alter the stats of past Pokemon by some remote chance, you'd have to question why some of the NEW Pokemon have poor stat spreads themselves (the new buffalo is basically a slower but bulkier Tauros. They even share the same mediocre base attack despite their muscular frames).
I just have to face the fact that my beautiful Pidgeot with it's glistening feathered crest will always 100% outclassed by that darned Staraptor, as well as pretty much every other bird out there (when you're inferior to Fearow, it's game over).