Issue 21 and Solo-Supergroups?
Depends on how much vet status you've earned, or if you buy access. Your post suggest multiple years of subscription time, so I'm not sure you have anything to worry about.
Edit:
The closest answer I've seen is this:
Dev Chat Highlights, July 20: Paragon Rewards


Triumph: White Succubus: 50 Ill/Emp/PF Snow Globe: 50 Ice/FF/Ice Strobe: 50 PB Shi Otomi: 50 Ninja/Ninjistu/GW Stalker My other characters
As I understand it; 'former' subscribers will have things that they paid for like SG which was inclusive of the past subs.
Free players won't be able to access SGs but Premium (former subscribers, players who pay for extra features) will. The info is up on the main site here. So it looks like you can still join and run them but not start new ones.
Tyger (50), Mutation-Controller Mind/FF - oldest Mind/FF on Union
I'm asking this here not because I think its the right forum, but because my search-fu is weak and I haven't been able to find the answer in the appropriate discussion threads.
I've built a decent sized personal SG base over the years, and was thinking of going with the Free to Play model when Issue 21 goes live, mostly because I have been extremely casual on here (maybe once a month). My most recent year long subscription expires in about a week, and I was looking forward to using the F2P model, paying for extra features as I needed them, until I noticed that F2P players won't have access to SGs. What happens to SGs that are solely owed and staffed by, soon to be, F2P players?
Has anyone seen this answered, or even speculated upon?
Our lives begin to end the day we become silent about things that matter.
--Dr. Martin Luther King Jr.