We'll see......
I don't think it will be a "bloodbath", but I share the assessment of lots of people in the industry that in a such fast shrinking market with so many competitors (especially in the compact and mirrorless segment) not all manufacturers can survive.
But for a potential customer the decisive question is: Which can survive?
Does it make sense for example, now to get into a new system from Olympus, Samsung, Panasonic, Fuji, Sony etc., or are these systems in danger, and you cannot get e.g. new lenses in some years?
Expect everyone forgets that the capital assets in the camera and optical biz grew exponentially at the expense of film asset capital.
Canon, Nikon, Olympus, Sony, Fuji, and even Pentax tech arms grew substantially as capital went from film to digital.
They lost some of their capital base when smartphones took over the P&S market (not entirely), but that was always low margin, high volume, capital intensive stuff with rapid product cycling which is an R&D and distribution hit and miss.
So the whole idea that the suppliers will shrink as the digital market matures forgets that the Japanese optical manufacturers—especially Nikon—are much, much larger than they were in the film era. They are totally different companies. Only Fuji was able to recapture a % of its film capital asset loss to digital. Most of the rest of consumer spending on film went to the fab and tech side of the industry, measured in billions of $$'s annually.
Canon and Nikon still sell far more units of their bread and butter SLR and lenses than at anytime in their history by large margins. What used to go to film went to digital, and now photography is even more ubiquitous as a communications medium (Instagram, text attachments, cloud) that the market is actually more robust than ever before. It is maturing and retrenching for these reasons:
1) Upgrade cycles are simply not necessary for many consumers of higher end photo gear as the tech has stabilized and matured. This is a perfectly normal cycle in all tech industries. It is happening in the PC market as well.
2) The market is saturated, but also many smaller players left or consolidated as the smartphones took over P&S sales. However the large sensor/quality optics market is still very active and generates substantial revenues overall as a subset of the overall electronics market. Small sense smartphones have their limits and a great many consumers know this. The equivalent is the audiophile market which has hundreds of boutique suppliers and is robust and thriving today.
3) The megapickle wars ignored the communications revolution and this caught the Japanese manufacturers out. They were caught in their own little island nation, insular mentality on this. People want their DSLR to act more like a smartphone, so wi-fi and connectivity are only now catching up to where consumers want their imaging tech to be.
4) The home PC darkroom is now a fraction of the market. All imaging solutions now have to accept and play well with the dominant mobile OS environment. This will revolve around file size and cloud services, plus streamlined editing and presets. The whole Adobe "workflow" structure is about t be a tiny subset of the market which is why Adobe had to go subscription to keep alive revenues.
5) Whole swaths of the world will want higher end optics and larger sensors (think 4k screens and retina everywhere) but will never use a home PC to process. Asia and emerging economies never heavily invested in home PCs so that "darkroom" option means that the cameras have to do more of the processing work. This will drive sales to those regions which are growth areas in their own right.
We are NOT seeing a "collapsing digital camera market". The P&S market was never the margin backbone of the industry (save for Olympus and Fuji). Note how those two quick exited the P&S market and went higher end. If your guts and brains and heart are built around optics, that's where you go.