The answer is Yes.  

For Varsity Summit comps – Wildcard Bids can upgrade to Partial Paid and Paid Bids (also Lift Ticket eligible.)  Wildcard Bids can not upgrade to an At-Large Bid.  At Large Bids can also upgrade to Partial Paid and Paid Bids (also Lift Ticket eligible).  Partial Paid Bids can only upgrade to Paid Bids (also Lift Ticket eligible). You can earn 2 Partial Paid Bids to equal a full Paid Bids.

For AllStar Worlds Championships – Battle Round teams can upgrade to an At-Large or Paid Bid.  And At-Large Bids can upgrade to Paid Bids.