This is great news.
Southern C.A. already has a (much bigger) tournament, and spreading tournaments to other countries is always good in my books.
I understand, but as far as the tennis overall economy is concerned, I really think that it's worrying how much its impact declines in the US, because whatever one thinks of the US, in terms of sports economy, they look to be much more effective to generate money than the rest of the world.
However, considering how things are, yes I think the Tour really has to develop in Asia and south America (both for economic reasons and because there are young players emerging from these countries - although there are emerging players in the US as well)