Well, no. Kelemvor would have ascended after charname. Depending on the timing, and how this would change things, charname might be the one to inhereit the death portfolio in this case. Or, and I think this is the most likely scenario, Kelemvor's whole thing would still go off without a hitch and he'd be the god of the dead as in 3e. Charname would hold the space between life and death, and Kelemvor the dead. The same way that Bhaal and Myrkul did.