I think 4 of Irelands under 20 team from last year have been capped by the senior team already - Van Der Flier, Dillane, Bealham ... maybe Ringrose too ?
So I wouldn't be surprised if a few more from this squad make the jump.
I haven't seen a lot of them but - James Ryan in the Irish second row looks like he might make a good senior international in the future. 6'8, 110kg and mobile.
In the front row Porter and McBurney look like a good prospect too. Maybe not stars, but could step up to international level.
It takes me ages to judge a back so i'll just stick to those for now