Will JavaScript type annotations kill TypeScript?
The creators of Svelte and Turbo 8 both dropped TS recently saying that "it's not worth it".
Yes: If JavaScript gets type annotations then there's no reason for TypeScript to exist.
No: TypeScript remains the best language for structuring large enterprise applications.
TBD: The existing user base and its corpensource owner means that TypeScript isn’t likely to reach EOL without a putting up a fight.
I hope they both die. I mean, if you really need strong types in the browser then you could leverage WASM and use a real programming language.
I don’t know and I don’t care.
Ofir Nachmani

Today Ofir advise organizations of all sizes, leading them through new IT market modifications, whilst building and executing a modern, innovative go-to-market strategy. Prior to my current endeavor, I played a role in a number of companies' journey in the cloud. Most recently, he was a part of Newvem. As the company's Chief Evangelist and VP of Product Marketing, he led product and generated knowledge within the company regarding the cloud computing market. In addition, prior to Newvem, he led ClickSoftware’s cloud initiative and held several positions at Zarathustra in SaaS development as product manager and company CEO. Over time, the companies took exciting steps towards success, with Datapipe's acquisition of Newvem in 2013 and ClickSoftware's acquisition of the AST Group along with Zarathustra.