Things are still up in the air but I asked my boss what are the plans for my team and he confessed it's likely we will be split apart and each one will be allocated in different teams.
All the possible teams mentioned already have tech leads do my position would be made redundant. I'll likely go back to IC if I agree to stay.
The idea of getting demoted so soon after getting promoted feels bad. It killed my enthusiasm today.
Have you ever gone through a similar reorg? Any advice?
Did you get a salary increase as well? And if so, would they decrease your salary if you go back to IC? If you keep your salary increase, that's a good deal. If there was no salary increase -> that wasn't a promotion! If they decrease your pay -> find another job
But I understand you might not want to be IC again, so I think you know what to do ;)
If you move to a new team officially as an IC, do what you do best and demonstrate your leadership skills. If they are truly there, people will follow your lead and the “demotion” has never happened.