I wouldn't say just yet that it would be the end of the 36ers IF the Adelaide Arena is made unavailable to them next year. But what alternate venues are there in Adelaide?
The Netball SA Stadium is way too small as it only holds 3,000 with one end of the court having a wall beyond the baseline and no seating. Playing there wouldn't make sense since it holds less than the 36ers worst home crowd so far this year (3,696 v Perth). We moved from Apollo to the Powerhouse because Apollo was too small and its basketball capacity was 3,000.....
The Entertainment Centre has the capacity to hold about 10,000 (the 2010 ANZ netball GF had a crowd of 9,300) but the problem there is date clashes. The AEC makes more sense if the 36ers are forced to move but the NBL would have to fit games around the numerous concerts and events held there and that would be a nightmare. Still, its more central and has public transport stopping right out the front so who knows? IMO its the only other venue in Adelaide which would be anywhere near acceptable.
Hopefully though a buyer can be found who will let the 36ers stay at the Adelaide Arena and not turn it into something like a church (one article I've read said that the owners of the Paradise Church were a prospective buyer: http://www.heraldsun.com.au/news/national/adelaide-arena-takes-a-leap-shot-of-faith/story-fndo471r-1226463085301).
Hopefully the arena will remain the home of the 36ers and basketball in South Australia.