I think you are so many degrees of separation away that you should be fine. EMC has always been very hands off with VMware, and VMware is relatively hands off with Pivotal.
The most possible disruptive outcome is that Pivotal spins out entirely, but I don't see that happening for a while, or even being influenced one way or the other by the Dell/EMC deal.
I wouldn't worry about it assuming you've got a timeline for the next 12-24 months.