The CPL isn't ready, looks like they want to sit in USL until it is, if ever.
The NASL is a sinking ship. I posted this in a different thread as my pessimistic prediction, looking like it was actually optimistic:
They could be done, and done fast. Pessimistic timeline prediction:
2016/17 - USL granted D2 status
2017 - Chicago NASL goes on hold due to continued lack of viable stadium deal
2017/18 - Rayo OKC folds
2017/18 - New York Islanders receive approval to build new stadium at Belmont Park
2017/18 - Canadian Premier League (CPL) officially announced, will begin play in 2019 with Ottawa
2018 - Jacksonville, Indy, Carolina, and Tampa announce plans to move from NASL to USL for the 2019 season.
2018 - Edmonton announces move from NASL to CPL for 2019.
2019 - Cosmos, Miami FC, Ft. Lauderdale, Puerto Rico, and San Francisco announce the NASL will not play the 2019 season; league folds.
I'll set the over/under at 3.5 more seasons of NASL. Revise down to 2.5 if USL gets D2 status by end of 2016. I'm expecting that mass exodus of teams that want to exist at all costs (rather than the ideological organizations like the Cosmos and Miami FC) extremely soon after.