You keep asking how it's going to work without an export code. It won't. You're freaking out like it's a new issue. The platform didn't collapse after LEGO GoD didn't export. If you have an RB3 code, great. If MadCatz provides codes for their releases, great. If they don't, OH WELL. It'll still export for some.
Individuals not being able to export because of purchase method =/= the platform is over forever and Harmonix threw away years of work because they didn't realize this until you said something. See; used games.