Hello,
I have received official word from our internal team which confirmed my initial suspicions but wanted to make sure that they were correct before sharing publicly.
E-Series discontinued future support of the VMware plug-ins a couple years ago, though we still support VMware host attach.
Officially there are no plans to update these plugins.
Unofficially, our internal team is currently investigating the scope and effort required to restart support but provided no concrete timetables when that decision will or will not be made.
I'd be more than happy to forward any further concerns on this to the appropriate individuals.
Thanks.