There's a lot of combinations I would love to see. I'm sort of surprise some of these haven't been made yet.
bug/dragon (vibrara or yanma split evolution) ghost/steel (floating suit of armor please) electric/fighting (kangaroo maybe but knowing gf it might be a pikachu lookalike) ground/fighting (badger like creature) flying/fighting ( eagle or griffin) fire/electric ( a star like creature similar to starmie) bug/dark ( black widow, cricket or roach) poison/dragon (komodo dragon as pseudo legendary) electric/grass (a hedgehog or maybe stegosaurus) fire/grass (venus flytrap creature similar to the plant enemies from mario)
Gamefreak make these happen along with dark type gym leader and NO MORE FIRE/FIGHTING STARTERS(this gen at least) XD
Age don't mean anything compare to intelligence. SS:2151 4629 8338
i hope that ghost/steel and dragon/fight never happen.
those types are just not meant to be.
I'll give you Dragon/Fighting, because that thing would be Uber if it ended up being a pseudo-legend, but a Ghost/Steel wouldn't be broken even with Levitate (I admit it would be damn good though if it were defensively built).
I was hoping for a defensive Grass/Steel type before Black/White were released and Ferrothorn delivered beautifully. I'm hoping for something similar to occur with a potential Ghost/Steel. That and Fighting/Flying are the type combos I'm looking forward to the most...