They wouldn't randomly discard Netto/Lan unless they wanted to take a crack at doing some character development of sorts and showing how Rockman.EXE adapts to living without the rest of the Hikari family.

...In which case I see a lot of angsty stuff coming our way if that happens, so I kinda hope this does not happen now.

MegaRock: I'd say the top-left one, although somehow I imagine my eyes bleeding after playing with that kind of field after a short time. >_<

Something about that field makes me think that I'm going to have to lean closer to the DS and squint to see what the heck is going on with the top row. >_>