Is support for the Gameboy Player planned?

[Probwontusethisaccountagain]

I don't think Dolphin as a whole would be improved with GBA emulation, but part of emulation IS preservation, and it would be a mistake to not include it, at least in my opinion. Then again, if mGBA ever supports the added GBP features some games have, then you could consider that preservation of the GBP.