Summary
After signing a partially-guaranteed contract with the Suns last offseason, Jones was waived early in the season and bounced around. He spent a couple 10-day contracts with the Lakers, but they ended up signing Andre Drummond in the buyout market and chose not to sign Jones for the remainder of the season. The Kings then signed Jones to a multi-year deal. Jones is a lob threat on offense, and not much else. He hasn't learned to use his big body to be a real rim protector inside, and his rebounding numbers leave a lot to be desired.

Unless he can develop a more polished offensive game by increasing his range, setting better screens, or learning to pass out of the short roll, I don't expect Jones to have fully-guaranteed offers anytime soon. Jones will be 26 when next season starts, so he's no longer a young prospect that you can expect development from. He may be able to stick around in the league a little longer, but it may be bouncing around in a similar manner to what he did this year.
 
Cap Considerations
Jones was waived by the Suns this season, and signed several 10-day contracts before signing a contract with the Kings that includes a non-guaranteed 2021-2022 season. If Jones is waived, he will be an unrestricted free agent and the Kings will not have any form of his Bird rights.

Teams will have multiple ways to sign Jones as even teams without cap space could possibly use any of the Non-Taxpayer MLE, Taxpayer MLE, or possibly even the Room MLE or Bi-Annual Exception to sign him. It's also likely that Jones could be signed for the minimum.