I would love a Dodrio mode for ingame purposes, but I still don't think that would help 6v6. Even on Shoddy, which is even faster than a dodrio mode since it skips all battle animations and end of turn effects, one battle between two stall teams can take forever.
But does it take longer than a 4vs4 double battle on DS/PBR (I really don't know, I never played doubles in DPPt)?
Besides, doesn't these tournaments have a time limit? I mean, with Doduo/trio Tower and a 20 minute limit, only stall battles would be incomplete. At least offensive/balanced teams would have no problem, right?
I'm also hoping they MAYBE make the elite 4 a little better. They started this in dp with giving each of them a non type poke, so continuing this trend (instead of regressing like plat) would be nice. I'd even be up for an Elite 4 based on "styles" (offense, defense, evasion) instead of types, with the champion being some balance.
I'd like if, besides the non-type pokémon, they made the E4 members to have two types each, one being the primary (say, Electric) and the other, the secondary (Steel). Then say, the Electric type would be pretty obvious by the E4 room, and also his/her talk (they always says which type they're specialized on, iirc); only the secondary would not be revealed until the battle. The E4 would have 5 pokémon, 3+ of them being part-Electric, and 2+ being part-Steel. 4+ of them would have an Electric move, and 3+ would have a Steel move. At least 2 of them would be Electric but not Steel, and at least 1 would be Steel but not Electric.
An example would be:
Raichu (Thunderbolt)
Lanturn (Thunder Wave)
Probopass (Flash Cannon, Zap Cannon)
GLISCOR (Steel Wing)
Magnezone (Flash Cannon, Thunderbolt)
3 Electrics, 2 Steels. 4 have an Electric move, 3 have a Steel move. 2 are Electric and non-Steel, and 1 is Steel and Non-Electric. And even then, there were room left for a wild card that *tries* to compensate the horrible shared weakness the team has.
This could be done specially to give more room for the E4 members to have a good, balanced team. Really, one thing is to have a Gym Leader specialized in one type, but the Elite? How can be they be considered the "best trainers" if one Earthquake could take down the entire team of an E4 (yeah I know my example has two 4x Ground weak pokémon, but bear with me)? One thing is to have it easier for kids, other is have the idea dumbed down. They could compensate this "variety" with lower levels, if they wished. 46-58, the range used in RSE, would be enough instead of the 53-66 from D/P (with got nerfed to 49-66 in Plat, at least).
Besides, it would also give more freedom to the game developers in the future. What if they decide to have another Psychic E4? Would they use the Ralts line, Bronzong, Alakazam, Jynx again? Would the Fighting E4 have yet again have a Machamp? Or would they be Psychic/Water and Fighting/Flying, giving room for shit like Swampert and Honchkrow? Etc etc.