your hole post is "based" on predictions:
"Yes Isaiah Thomas was an all-star but I think it's very likely he will never perform again like he performed this year."
nobody knows when will he be back or how good will he be. So this can be in range from he will be back by allstar game and cavs will win a chip, to he will be back at some point of this season and they will have to shut him down.
"Zizic because I think he is going to end up being a rebounding machine."
Zizic has done nothing but disappoint so far. His "high" motor was not that high at all, but rebounding was fair. He will most likely be a Tristan Thopson off the bench for the Cavs, best case scenario.
"Last but not least is the 2018 Nets pick. Many predictions are predicting the Nets to finish with a better record than Atlanta, Chicago, Indiana, Phoenix, New York, Los Angeles(not sure I agree on this) and possibly Sacremento"
Don't get me started on the pick...worst team doesn't mean they will get #1 pick, and even if they do, no way of telling what type of a player you get in return, especially when that "stud" would be playing on a championship level team and his development would be seriously slowed down
Who knows what will he and Gordon bring to the table
Bottom line: i do think we won the trade as well, only because the fact that Kyrie is the best player and under contract + the fact that we made a lot of space for our young guys to develop.
Everything else, only time will tell