The current 30 teams will get millions in expansion fees, more then ever before. I do hope that there will be some decent players available. I would also like for the "new teams" to be able to draft players two years before the team is due to start playing, giving them a better prospect base.
I could see there being limits on how many players you could protect based on either age, experience, years pro, or something like that. 15 players under 25, 5 aged 25- 30 and 5 over 30. It was so long ago I don't remember what the rules were for the last expansion draft, and what about players with no movement clauses?
EDIT: Well here it is,
https://en.wikipedia.org/wiki/2000_NHL_Expansion_Draft it looks like only NHL roster players were eligible to be drafted