If we just stay with the "facts", it is very very unlikely that we will see a series 5 this year What do we know:
- Two new high end materials were discovered in new wachOS beta
- According to the original source the files where found in a folder which is supposed to be use for series 4 (
https://ihelpbr.com/apple-watch-2019-ceramica-titanio/)
- Apple registered 4 new watch models with with the Eurasian Economic Commission, which would perfectly match the Titanium/Ceramic 40/44
- Last year at 20.8 Apple registered 6 new watch models, which were the new series 4 (2xAluminum, 4xSteel)
- The registration is mandatory to sell on this market, and it never happened before that apple released a product without registration.
So what can make the the series 5 happen?
- Apple will not sell on Market covered by the Eurasian Economic Commission from start, but will sell the high end titanium/ceramic models -> very unlikely
- Only the Titanium/Ceramic models will be series 5 -> very unlikely
Sadly I'm very convinced we will not see a series 5. The next big steps would be blood pressure and glucose monitoring. I'm sure Apple has proof of concepts how to do it, but making a reliable product which sells millions and meets apples standards, need a lot of time and engineering. I'm also working in engineering and most people underestimate how difficult it is to make a goof product from things that already proven to be doable.