Sort of sounds like a potential disaster....
Any unrealized premise is a potential disaster, or a potential success. It's all in the execution.
After all, it wasn't the concept of Murder, She Wrote
that made it succeed. The concept, as many have noted, was ridiculous. What made it work was Angela Lansbury's talent and charisma, and the legion of name guest stars she was surrounded with, and the cleverness of the writing and the mysteries. So if this version has a strong lead, clever writing, and good guests, it could work too. Or it could turn out to be a mess. That's the gamble with any series, remake or not.