I would be very surprised if Arthur is on the regular season roster. He'll be bought out soon, if not used in another trade. They may wait until closer to training camp to let him go. He actually wouldn't be a bad player to keep if we weren't in need of freeing roster space. Don't get me wrong, I don't think he's a rotation player but he could be a decent 5th or 6th big in the lineup behind Ayton, Bender, Chriss, Chandler, and Holmes. Maybe they plan on having Holmes and Arthur compete for the final roster spot? That's a possibility for training camp.
I think we'll see something similar with our guards, with Canaan, Daniels, Harrison, and Reed all vying for roster spots. The position the Suns are in right now allows them to go into training camp and let everyone earn their spot on the team, which isn't a bad thing. It's not like competing for a starting job, it's competing to be an end of the bench/practice body.
I would be surprised if Chandler is on the roster next year, the more I think about it. Unless Igor really likes him, there's no reason to keep him around. I don't think he's been the mentor some have hoped he would be. Remember that Markieff went through his attitude issues while Chandler was here. As a vet and potential locker room leader, he should have helped keep that from becoming so public. Ever since then I've been a little leery of how much of a veteran leader he is. He didn't appear to help Len improve either. If we can trade him, great, but if needed I'd be fine with buying him out. It's not like he'd play in more than 60 games this season anyways.