It's rather concerning to read this - I use Stripe with S2 nowadays, so haven't had any problems with this yet, but you are right, I really would like to see the s2 team just come out and tell us if there is no further support for this plugin.
@raamdev did say that development was happening - although that was 5 months ago - and we have heard nothing since.
Could you please put us out of our misery if this is not the case Raam - so we can at least look at alternative options, before some kind of total failure?
I've been with s2 for 8 years now - and it's been absolutely brilliant.
Still to this day it all works fine with my Stripe integration - nothing gets missed - it's pretty flawless.
BUT... running a site of 3,000 members on it, makes a change of membership plugin look pretty darn scary to me.
If you could PLEASE let us know your plans either way - it would be VERY helpful.