Not really a pokemon guy these days but those pokemon go influences will most likely ruin the game.
As far as overal player base go I'm pretty sure there will be allot of people who will like these chances, it will most likely not be the same as far as the traditional pokemon games go that I actually liked, That's a pretty solid portion of the game that got ruined.
I'd say pokemon heartgold soul silver and pokemon black & white 2 era was where they were at their best those games were solid and the art style of everything was great, afterwards the 3d main world and the questionable 2d art style overall from x and y onwards made everything look allot worse but acceptable in terms of gameplay and new stuff.
In the actual old school era I'd give pokemon emerald the win, but releases on the ds felt and looked retro with tons more stuff to do wich is why the high times of pokemon to me where black & white 2 and pokemon heart gold soulsilver the best games in the entire series.
I'll give pokemon platinum third place so much new features compared to the original diamond and pearl that made pearl and diamond be the inferior versions, not to mention the underground digging fossils with multiple players and their secret bases good stuff
Secret bases where also a fun feature in pokemon ruby sapphire and emerald especially with friends.
It's pretty sad to see that pokemon go had that much of an impact to actually chance the main series as a whole for a pretty solid chunk. Sad times but understandable seeing the succes that pokemon go had. I personally never got into the app it was so boring, I can't believe that people where so addicted to such a simple concept and plain looking game It's absolutely insane that so many people liked it, I really question some people's daily lives and their imagination if the pokemon go app was was that entertaining to them. My two cents anyways.