As for Irving he has been likely to be traded with Westbrook. This deal would be great for Lakers but not much for Nets unfortunately.
I've heard that Lebron would like to play with Irving but just as the trade, it's all the rumors that I've been hearing. Well, I guess that would just be another enjoying season for Lebron for choosing who he wants to play with.
As for the trade with KD, Nets really have to put priority on him as they've invested that much on him without getting that great return for his staying career on them.