But can tank swap with dps or dps swap with healers mid game. like 6 people in a team 2 people selected dps the dps slot locked same with tank and healers. This will give the option to swap.
Example. rein want to switch to dps with mccree. rein press H he now not slecting anything the dps can slecet tank while rein select any dps and they swap.
I don’t know if this possible ( sorry bad english)
I can play any of the DPS but if I’m tanking, I can only really play Zarya, Roadhog, and kind of Winston. If there is a role queue, they would have to have a “main” tank queue as well. Otherwise you end up with Zarya and Roadhog as your 2 tanks. This combo, which I’m surprised more than zero people think is viable, is not viable. EVERY bit of damage (save 200hp bubbles every 10 & 12 seconds) the enemy does feeds their ults, exposes you to shatters/dva bomb/hitscan/etc.
Whereas if the enemy has a barrier, you have to devote resources to breaking it before you can do any damage or charge any ults.
I can see your point. But if people will have long Q time for dps they will Q for tanking even if they not good at them. but maybe i am wrong 
There will be an adjustment period but I think more people would be willing to try tank if EVERY game there was another tank to peel for them (think how much more survivable Rein is with Zarya or Winston is with DVA) AND two healers. Eventually they learn these roles or fall to where they belong.
I imagine there would have to be some kind of MMR reset if there were different ranks for each role.
To solve this problem each class could have seperate rank. Ie: i can play good pharah/dps at about plat lvl…but my tabking is more of a silver gold lvl so i would que as tank but would be put with silver/golds not plat
100%
Role based SR/Role Queue/2-2-2 provides structure which will be very helpful in making these roles seem more accessible. Trying to learn to Rein when your team has no resources is rough.
This is an interesting point. Forced 2/2/2 does mean they can implement role-based SR.
If they were to implement role-based SR (which would be great) people wouldn’t buy alt accounts to learn new roles which would end up losing blizzard money
Pappa Jeff doesn’t seem too worried about that. In at least two interviews I’ve seen he has seemed like he really wants role queue and role specific SR. Unfortunately he has also indicated that if it comes it won’t be for a long time due to the development work required (basically rewriting the entire matchmaker) and rebalancing that would be necessary. The example he gave was Brig. She really only works in 3-support compositions. She would have to be reworked to make her more viable in 2-2-2. I’m sure there are other heroes in a similar situation.