If Smart has a decent season, there will be at least one team out there (BKLN, Mavs, PHIL?) that will pay him more than we will be willing to match. We have to pay Kyrie max deal a year later, so there just won't be enough bread to pay Smart what at least one team will offer him. Too bad.
Brooklyn will definitely not have cap space for like the next 3 years. If anything, look for them to take another big contract for a young player/draft asset like they did with DeAngelo Russell.
Dallas would probably not want to pursue Marcus, considering their bargain guards (curry and dennis smith). Likely to pursue a wing or big (nerlens noel).
Philly would rather save their money for Robert Covington.
You’re very incorrect about Dallas.
1) Seth Curry is an unrestricted free agent next year. He’s certainly not blocking Smart.
2) Smith is an exciting prospect, but there’s room for both on the roster.
3) Noel only has a cap hold of $8 million next year, so they can go over the cap to keep him very easily, should they choose.
4) Smart is closer in age to Harrison Barnes and Noel (25 and 23) than are other free agents, which would put that core on the same development timeline.
5) Smart could very well be best free agent Dallas can get to sign. They shouldn’t be an attractive option for the guys on their third or fourth contract looking for a super team, and those players wouldn’t make as much sense to Dallas either.
6) Smart is from Dallas and has always played very well there.
I will be very surprised if Dallas isn’t a major suitor for Smart next summer. The best hope for that not happening is that Smith Jr. plays so well that it makes more sense for them to pursue a wing in free agency. That’s not impossible, but it is unlikely for a rookie PG.