international distribution is a revenue, isn't a cost
Eventually, yes - but first they have to go to the expense of getting ROW approvals for V - hopefully by signing up partners like Eddingham that will pick up all costs plus provide some upfront money. I own several other bios that "went it alone" in gaining or trying to gain drug approvals from the EMA, Canada, and Mexico. EMA process can take several years, it's quite different that FDA process, which I'm sure you know, but others may not.
As far as any continuation studies after R-IT is halted, I could see value in following patients for years, but don't know if AMRN would be willing to continue to supply V for free plus pay for checkups, i.e. continue as an open label trial for some amount of time - I can see arguments for and against that. Also, we've seen some recent articles on follow-up studies done many years after the original trial ended (the niacin raised CV risk for women by 30% one?) - but I don't know if drug companies pay for that research or if universities and/or NIH provide funding for that type of thing, probably varies, a mix of both. If not funded by AMRN, there's no guarantee that anybody would be willing or want to do that sort of long term follow-up study, but if R-IT is a smashing success I'd guess it would generate plenty of interest in doing it, would provide a variety of thesis ideas for those seeking PhD's.