In the upcoming version of Shellter, most of the updates are mostly related to extra input validations, so not really visible from the user’s point of view.
However, the upcoming version will directly support domain names for the LHOST parameter of the reverse connection payloads.
So in case you really needed to use a domain name, you won’t have anymore to generate the shellcode from metasploit.
Unless of course you are using a payload not integrated in Shellter.
This is basically the most requested feature by the community, and hopefully will be available quite soon.