Teambuilder rewards for needed roles?

With the coming of t he new matchmaking where you can choose your roles ahead of time and essentially nobody will ever be stuck with being forced to play support, will there be any kind of rewards for those willing to play in demand roles needed to complete teams? Such as support? The best example I can think of is in WoW, not sure if they still do this but they used to offer a little satchel of goodies if you queued up as a tank/healer as those were the most needed roles to complete groups. Because as of right now whenever I want to play teambuilder to practice, it feels like I'm waiting forever for a support to complete my group. Maybe something as small as boosted ip? or a small amount of rp?