Under no circumstances (which is why I ignored Essentials)!
If they want to sell me a new ruleset, they better come up with an actual new ruleset, i.e. 5e. Just like 4e is significantly different from 3e, 5e would have to be significantly different from 4e _and_ I would have to consider it a significant improvement on 4e.
If they want to sell me a new ruleset, they better come up with an actual new ruleset, i.e. 5e. Just like 4e is significantly different from 3e, 5e would have to be significantly different from 4e _and_ I would have to consider it a significant improvement on 4e.