Chan has four years to play three so it's possible that he redshirts to get stronger & work on his game.
Thor should have redshirted last year, but didn't. Probably should this year, but if he didn't last year he won't this year unless he gets hurt. From what I saw in the U-20 Euro Championships his game has improved from what I saw in junk time last year. Will he ever be a starter? Probably not, but there's nothing wrong with being a guy off the bench and helping out on the scout team for the first couple of years. If he doesn't look like he's going to get on the floor by the end of next year it was probably a waste. Here's a quote from his bio on Huskers.com "Thorbjarnarson's opportunities will come as he continues to improve on his long-range shooting and transitioning to the college game."