The new features coming are cool and all but something is still missing

a reason to keep playing that next match other than just seeing your rank go up or down.

How about at the end of every comp match the winning team gets a special chest drop that they roll for and only one person can win it. This special chest has a low chance of rewarding you any skin for your character including Pink Mercy and maybe even a super ultimate rare prize of a free Blizzard game in the Blizzard store.

I know i'd play comp a lot and try real hard to win if they did that.