I very much doubt that MS will make 11 a free upgrade. In fact, I very much doubt MS would discount 11 for Win 10 users. When MS was giving away Win 10 in the early days, it was in an effort to retire Win 7 and 8. Given that the majority of users are now on Win 10, it is very unlikely they will do that this time.
11 is supposed to be free, as 10 was.
The fact that the leaked version can be activated as I mentioned above, speaks for that.
I sit corrected. We all knew how desperate MS was to get people off previous versions and onto Win 10, but I would not have expected MS to go the free route again.
Anyway, free or not, I shall wait a while longer before diving in head first. However, if MS is basing Win 11 on the Win 10 code, with perhaps new and improved features, then it likely won't repeat the error that was Win 8. Thing is, I thought Win 8.1 was quite good and probably would have stayed with it if I hadn't been irreversibly upgraded to Win 10 during Scheduled Maintenance one night.
After a few teething problems I actually didn't mind Win 10, so if Win 11 is very much improved on 10 as it stands, I would imagine the transition would be painless for most users.