With the small size of the core development team and the various issues they are having to work on and with new issues like NAT Slipstreaming etc that keep turning up, I suspect that the resource for something like you are asking for will have to come from someone in the community being willing (and capable) of doing the coding work to make it happen.
I doubt that what you are asking for is technically impossible but I don’t know how complicated it would be.
I think your best bet is to raise it as an item on bugzilla as the current setup prevents you using the remote syslog.
Once it is in bugzilla, then there is a review process for the bugs and they do get worked on. Of course the bigger, more critical ones are dealt with first but at least your issue would be in the list.
Also if it turns out not to be very technically complex to make happen then the review process will flag it as suitable for a first bug activity and could be picked up by community members who have a desire to start working on bug fixing for IPFire.
Your community credentials will allow you to login and raise a bug.