I don't mind this idea at all, especially with my desire to see a 2nd team in WA (Perth).
Imagine if the NBL Cup games were to be played in various population centres, south of Perth (and in Perth, of course). I can only think of places like Fremantle, Bunbury, Rockingham, Albany (a bit too far away?) and even Kalgoorlie (not up with the towns/cities in WA) and others, no doubt. If a commercial and popular success, it might generate some support for a 2nd Perth team.
To those who claim that no-one would support a 2nd team, look at the AFL GF just past. 60,000 crowd/sellout for a footy game that neither WA team competed in, and, the 2 teams competing were Victorians no-less (forgive my praise of the AFL GF)! Shows me that they love their good sport for the sake of it. No, I don't mean that they "cop" anything. A lot like Melbourne in that (Perth-ites) flock to another NBL team, soon.
The following year(s), we could use similar model for future expansions in NZ, Newcastle or western Sydney, and western Victoria.
BTW, I also like the idea of cancelling Blitz and replacing that with the NBL Cup, in the pre-season.