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Since Someone didn't get an answer, within the next beta, I'll ask questions about improvements, renovations and updates for Pokémon Sienna again.
1. Will it be revamp into D/P/Pt/HG/SS/B/W/B2/W2/X/Y trainer sprites?
2. Will it be revamp the tileset?
3. Will it be revamp into B/W/B2/W2...
Why, yes! Yanma doesn't evolve into Yanmega. The Mega Lopunny don't have sprites, but the Mega Lopunny still has the Question Mark sprite (??????????).
For next release, we will replace Voultan Starters into Kalos Starters including evolutions:
Gramet-Aprass-Marmfoo will be replace Chespin-Quilladin-Chesnaught.
Ponfant-Elesnow-Eliphreeze will be replace Froakie-Frogadier-Greninja.
Moocano-Flabull-Blazull will be replace Fennekin-Braixen-Delphox.