Well this franchise has such a huge following in Japan that Capcom would be foolish not to continue developing further games. That is irrespective of Tri performance in the West
If i remember correctly, in an interview with Edge a few months back, a producer on the game said that it is is the company's plans to try and replicate the success of the game here in the west and that Tri is just one of the first stages of this plan.
The game being succesfull will just secure a higher marketing budget for a future version and better terms in any deals Capcom negotiates whith future potential publishers, distribution and retail partners.
Thats it i believe.
btw i think 100 - 130k in U.S. and 30-70k in Europe (first week) for lifetime sales of 2 million
