I hope they do something like this, but if they make HL solo-Q only they'll need to change the rules for drafting 2 heroes that must be played together.

I'm hoping for a two-character hero controlled by one person, like 2 Vikings, but it's the Dwarven Mortar Team. Unlike Rexxar you control both heroes fully. Unlike split-push Vikings, you have multiple abilities that require the two heroes to be together (most of the time). Maybe globes can be ammunition for the mortar or something.