I know I can use argumentlists, or $using for Invoke-Command for executing scriptblocks remotely, however I was wondering if there was any way to pass an argument into an interactive pssession with Enter-PSSession or New-PSSession ?
You can't "pass arguments into a session." A session is a runspace on a machine; what you can certainly do is run a command in that runspace. A session isn't running anything implicitly, so there's no need for arguments.
WRT Enter-PSSession, it's the same story. You're just interacting with a runspace. If you want to create a variable in that runspace, just do so. But the command doesn't offer a way to pre-pass anything into the runspace, no. That isn't really what sessions are for.
Invoke-Command is different because it's actually running a command, so there's an obvious need for arguments.