Wharton does not accept 'transfers' - ie. you would not get credit for classes already completed (although you could claim a waiver from some core classes and take additional electives in their place). Basically, you would need to apply as a fresh applicant, not as a transfer.
And I must say, that applying to Wharton when you have just started another well-regarded MBA program may be difficult. An MBA is a major investment in time and money, and it is generally expected that you will have done you due diligence before applying (and especially before accepting offers). Wharton adcom may read something into your decision-making skills on this issue.
(No personal attack intended here - just how it may look at adcom).
If you want to maximize your chances of being admitted to Wharton, my advice would be to withdraw from the other school now, rather than starting.
But this is the high-risk strategy, as there is no guarantee you would be admitted to Wharton, and this could leave you with any MBA program at all (unless you can get a deferral from the other school?). Things could be even more complicated if you have already left your employer. Ultimately you will have to balance these issues up against the benefit of access to the PE/VC field (and even then, this is not an easy field to break into without relevant prior experience).