Perhaps the biggest problem this season from the nets was Dwill's ankles. Early in the season he went down and never recovered to his old form. But at the beginning of last season Dwill was in RIDICULOUS shape. I think he has a pretty good chance of coming back to his potential after he recovers from surgeory. While bone spurs are obviously horrible to play with, after they're taken care of the issue should be resolved (of course Dwill could still have ankle problems).
Joe johnson is still Joe Jesus and I think will continue to be a consistent dominant scorer as long as he stays injury free like last year.
Lopez on the other hand is much more of a toss up. While he has come back from every injury and put up great numbers, you never know.
Losing PP and KG (potentially at this time) would be a huge blow. While KG underperformed he did hold the defense together. PP was one bright spot this season for the nets. And of course they also brought their intangibles, toughness. However, I think they taught the players on the Nets that toughness and I don't think that's something that Dwill or JJ will lose without them. In fact I suspect them to be much tougher due to what Kidd did to the team.
Without PP Mirza will probably see a lot of playing time which I believe to be a very positive thing. I think Mirza is a diamond in the rough who is still working on bringing all aspects of his game into the nba. We saw a lot of development from him this year: great defense on Lebron, decent rebounding.
I'd suggest the nets look to obtain Hollins as their next coach (although truthfully I do not know enough about the coaches available to really say). The way hollins developed the Grizzlies players into the respectable team they are now could do some good for the nets younger guys like Mirza, Plumlee, the rookies. I also think his defensive approach to the game would help soften the potential loss of AK/KG and certain loss of Kidd.
With all that said Kidd really did something pretty terrible to this team and I hope for his sake that this is a blessing in disguise