Hmmm, I wonder who you'd be meeting w/?
I think tumbled pavers are right on the cusp of starting to be seen as dated, and I haven't seen anything yet that to me looks like the next great thing. Unilock has a product that imitates clay and I like it, but I'd like to see more development in that area, as I see clay as a more classic, timeless look.
Also, with the emphasis on green lately, seeing more development in that area would also be of interest.