On one of the Leica videos on LL the Leica chap said that M production is stable at around 12,000 bodies a year. As it has been for most of the last 50 years, apart from a brief blip in the early 2000s.
The film body production is split about 50-50 between MP and M7. Most of those are sold into Japan. The Yen is at a very high level against all currencies, so I would be surprised if the current price increase to most of us is significantly affecting their main market.
Also with the end of the M8 production and the introduction of the M9 I think we will see a lot of activity in the market as bodies change ownership from users to collectors. There is no particular indication that Leica is in any sort of trouble at the moment, certainly not in their M division, though the S camera will likely be a model that could sink the company if it bombs. There is no particular reason to expect it to though, as long as Leica can deliver the goods there are enough rich people or non-rich Leicaphiles to buy the products.