Not in the near future, because compilers will still emit weird code in the presence of UB. The hardware enforces more stuff, and it makes it more likely you'll

Not in the near future, because compilers will still emit weird code in the presence of UB. The hardware enforces more stuff, and it makes it more likely you'll get a crash instead of the program continuing in a bad state, but it absolutely does not eliminate the general UB or "implementation defined" problems.