It is hard to say if the GS 2 will get JB or not.
Going by their track record, I don't think it will, but due to how popular the GS 2 was and how the GS 3 is even more popular, Samsung would be very stupid to not provide the update.
They are rubbish for providing updates, they only support their flagship devices, pretty much non existent support for any other device of theirs that isn't the flagship. And once a new flagship device is out, the old flagship then gets much less priority with updates i.e. the GS with 2.3 when the GS 2 came out and the GS 2 with ICS (seems more buggy than what it was on 2.3 going by reports here and on XDA) when the GS 3 was coming out, no doubt it will be the exact same again with the GS 3 and GS 4 when released etc.
If they bring the JB update I wouldn't be expecting big things of it.
HTC and SE are better in this regard with the updates and for a range of devices rather than just like 1 or 2 devices of Samsung's lot.
You like on gsmarena and see the amount of devices that Samsung have released since the GS compared to HTC's devices since the desire/nexus one etc. unbelievable the difference
Saying that though, it seems that pretty much all devices only get 2 big android updates and that is it.
I will see what happens with the next big android update, version 5 or whatever it will be and how things go regarding the GN and NS, if they both get the updates (the GN should, but I don't know about the NS as the Nexus one didn't get ICS) within a reasonable time period, my next phone will most likely be a nexus device as well unless HTC, Samsung etc. come out with something much better
Unfortunately google don't seem to care about the fragmentation issues, the fragmentation issue is dreadful and is the only area that is really holding android back big time, it is so bad even of the google guys jumped shipped to IOS/apple:
http://crave.cnet.co.uk/software/ex...roid-fragmentation-drove-him-to-ios-50008618/
And only 10% of android devices in the world has ICS running (officially)
