Type Events could learn from Pokemon Duel
So in Pokemon Duel, every 2-3 weeks there will a gym event lasting about a week, during which two types get buffed in the gameplay. Actually, there is one going on right now (Water & Grass).
I hope there will be something similar in Pokemon GO. Aside from increased spawns, the event type Pokemon can get buffed in gyms (such as gym placement CP +300, move damage +20%, etc), to see a more variety in gym meta (hey, a 3000cp coconut tree, deal with that before?). Pokemon Duel's event pretty much does the same effect - during the event players use figures(mons) and strategies which they wouldn't otherwise.
Added: They can already do that technically. Remember the CP adjustment last Nov? They did it on the server, and everything changed. So it's possible to change base stats for a certain period and so on.
Anyone feels the same?