Just sent this to Eze, but it's worth posting publicly as well:
If we go the expansion route, what I would probably do is lower the keeper # from 6 to 5, then let the expansion teams pick from the pool until they each have 5 players on their team (this pool would include rookies, cuts, and any international imports). It's not the strongest draft class so the expansion teams would probably be pretty rough in year one.
More likely however, one or two owners will quit or go AWOL and then I'll just replace them with new owners and do a dispersal draft with their combined assets, and then do the annual new player draft as planned. In that scenario, current owners would also be allowed to opt-in to the dispersal draft.
League will be capped at 14 teams, regardless.