Would adding LW and LS be worth it?
- Would the RFU sign off on it? - Maybe
- Would the FIR/IRFU/SRU/WRU sign off on it? - Given the right conditions, Yes.
- How does it affect quotas for euro qualification? - Screws second tier entry into the Challenge Cup but thats it
- Is expectations of bigger crowds for either being realistic? Why would there be a significantly bigger draw to the Pro12 than to the English Premiership? - Short term, probably not. You're relying on expats turning out for easy away games to watch their team but that would only really counterbalance. long term, its what they can build of it.
- Are the SRU expected to put money into LS, same for WRU and LW? How does this play with their teams back home? (Particularly the regions, as they are part-private.) - Yes and yes you'd have thought. I can't imagine it going down too well in Wales, but Scotland need a third team and everyone knows it (whether they can afford it is different)
- Are LS and LW actually in London? Are they accessible to ex-pats? - LS is, but might have to move. LW isn't, but may be able to move back. Anyone living in London who's whining about having to go to Oxford to watch their team for an away game is a bellend though.
- What about London Irish (well, Irish Exiles more likely) and London Italian? Will the IRFU and FIR feel a little at an unfair disadvantage? - Presumably the promise of more money for the league will smooth that one over.
So to answer the first question... Potentially yes, but probably no. The financial logic of a Pro 12 team or two in/near London is impeccable but the logistics are stacked against it.