Will character transfer be paid or free? Will one be able to transfer characters from a PVP server to an RP server or from PVE server to a PVP server?

I would like to ask about server merges. Low server population is a service level issue not a personal issue. Bioware should just merge servers of the same type. They are losing more players due to a dead servers and paying more to maintain empty servers. They should just merge servers servers of the same type (PVP, PVE, RP, etc....)