Thing is, and as has been pointed out, you can tell by the figure list that Hasbro's just sending out cases that already exist... Not making up new assortments or cherry picking existing cases and making up new ones. That's just not gonna happen. This is obviously, at this point, "We had a lot of this and can't take a bath on it if we can avoid it".
I wouldn't count on 5 Below getting every wave you want... They're still getting waves from 2010. They're probably going to get relegated to really just the even older waves. 2012 stuff I'd expect to stay with the big retailers for the time being I guess, except perhaps the first 3 waves.
Those may surface at a discounter because Hasbro, judging by the release info, knows those 3 are poison at retail... At $5, they may fly off the pegs. I mean, I'd buy Lil Ani's and Naboo Guards and stuff at $5. And obviously the new ones from 2 and 3 would do fine at $5. But yeah I wouldn't count on Wave 4 onward showing up at a discounter at this point.
Now... Bastilla Shan Wave or other older waves? Maybe. They seem to be off the table at this point for the big retailers, which could mean they don't honestly have many of those around, or perhaps they do and are just waiting to move them to a discounter. The Endor wave was definitely a surprise... It was also an XMas time wave as I recall... maybe there was just more of that wave.