RAW is proprietary. Each manufacturer has their own formats and even those formats can change. What happens to CR2 files when Canon changes to CR3? Can anything still process CRW files?
I have Minolta MRW files from 2002 that are still fully supported by the latest version of Lightroom although Minolta was long ago acquired by Sony. Also by UFRaw and probably any of the many converters based on Dave Coffin's DCraw. CRW files from the D30, D60, 10D and 300D are fully supported by Lightroom 5.6, Capture One Pro 8, and Canon's own DPP 3. The D30 files are also from 2002. I can't guarantee the future for you, but so far nobody is dropping anything. I think it is very unlikely that support will be dropped because once the hard work of decoding the file and profiling the camera has been done, it requires nothing more - dropping it would just be wasting that work.
There is no RAW standard. Adobe is trying to introduce a DNG format, but nobody is buying into it.
I don't foresee Adobe going out of business soon and they will certainly continue to support it.
RAW is not good for "archival storage". RAW files should be converted to TIFF files for that purpose.
I couldn't disagree more. A single Raw file can be edited, interpreted and reinterpreted in a thousand different ways. Moreover, Raw conversion technology is still advancing and you may want to do new conversions of old files in the future. Raw is the ideal archive format and DNG is a little better for that than the maker's Raw. A tiff ties you into a single interpretation and being rendered and gamma corrected has less data and less flexibility for reediting than the Raw, unless you have the vast storage capacity for hundreds of thousands of multilayered tiffs that with today's cameras could easily be more than a gigabyte each.
Besides, how are you going to get a 16 bit, ProPhoto RGB tiff without going through Raw? That old Minolta, a dozen years ago, output tiffs, but I haven't seen a camera that will do so since.