I think that they (Slim will hate this ...) will stay self sufficient.
They will just sell off KH's in a reactionary way depending how the lawsuits stack up. More lawsuits will bring "NEW LIGHT" of one meeting a week at one triplex KH per city or area - each then be shared by 15-20 congregations.
Let me explain by example.
Plymouth in the UK - now 8 congregation sharing 3 halls.
1 hall is a modern 3 hall complex where 5 congs and a Polish group meet - the other three are slightly outlying with one cong per hall.
By moving those three (selling their KH's of course!) into the 3 hall complex you could have 9 congs and one group. THAT is with two meetings a week!
NEXT STAGE
Drop to one per week with a 30 mile radius and this complex could house 20 and have congregations from as far afield as Bodmin, Launceston and Totnes.
Another super triple hall each in Truro, Torquay and Exeter would mean that Devon and Cornwall would have only 4 jw.borg buildings for 60 odd congregations with journeys largely on 70 mph dual carriageways/motorways.
In the "west" the borg is so property rich and with so much opportunity to go on line it is unlikely to have big financial woes for a long time to come.