Same here.
If Microsoft really delivers TLS1.3 and no major security flaws are found, I have the feeling that we will still be around for quite some time. Not to mention that I am planning to ask Microsoft if they'll keep their Premium Support available after April 2019 and how much it would cost, 'cause if there are still a considerable amount of companies that are paying for it, they'll keep it and I would be more prone to pay for it rather than paying a W10 licence. After all, the US military services - including the navy and the air force - already said that they have specialised hardware and hand-written software running on XP-derivate and they didn't plan to upgrade anytime soon 'cause it would require a complete rewrite of the softwares and further tests before deploying them to the field. Imagine having to rewrite programmes written in C/C++ with the core in x86 ASM for radars, proximity controllers, navigation systems, airflow controllers, pressure stabilisers and many other things... I mean, it's possible and it would probably get some benefits from x64 and modern AVX512 intrinsics, but it would be a pain in the b- uh... I mean a nightmare to re-write, test and support.