Would make the most sense to me. EC allows all vehicles to be played and gaijin has already done most of the work. As Planes, Helicopters and even Ships already have an EC mode.
It would also be alot less messy.
For example, one primary EC mode for PvP and one for PvE, avialable for Arcade, Realistic and Simulation. Where WT can become truly combined arms, provide a playingfield for all vehicles, opening up objectives to utilize all of the functionality the vehicles have to offer and even have space for future additions that would not work in the current gamemodes.
And then several secondary gamemodes, focused on specific things the community wants.
Like a Fighter only or Tank only 6v6 Team Deathmatch.
This would work, because the primary EC gamemode already provides plenty gameplay for everything, so other modes can be more focused.
What do you all think ?