Someone wondered whether 'civil war' will erupt between the 'hard-liners' and the 'liberals' on the GB.
In a sense, there's been on-off 'civil war' between the two factions for the last 25 years (ever since the 'Ray Franz incident'), in a cold-war kinda way.
It's never (yet) broken out into a 'hot' war, but the frequent contradictions between articles in The Watchtower and Our Kingdom Ministry are clear evidence of 'guerilla-type skirmishes' between the two sides.
It is a conflict that can only be won by the TJ faction, as they have the majority vote (even if not-yet-the magic 2/3 majority) on the GB and all future replacements (irrespective of from wherever they may be dredged up!) will have to be acceptable to their 'camp' to get their vote. Any future 'liberal' nominations will be vetoed. So TJ's group can only get stronger and will one day achieve their 2/3 majority
Will there ever be a group splitting off to form a new 'religion'? Highly unlikely, probably. Back in Rutherford's days, the organisation was insignificant and it was no big deal to walk away from it. Nowadays it's a multi-billion-dollar, multi-national organisation. That gives the organisation's officers a lot of power and influence with governments, health authorities, aid agencies and UN affiliates.
Neither faction would willingly walk away from all that money and influence, though once he gets his 2/3 majority, it's possible TJ may force the issue and try to expel any he deems too 'soft.' (Interestingly, this hardening of attitudes neatly parallels general trends in the USA.)