This is more a suggestion of a functionality in general not for a single device, not sure if something like that is planed.

I noticed that some devices like the German/ EU version of the Desk AP [EAP650-Desktop] has a RJ11 port to connect for example the fax to it, same for the new DSL router [DR3650v], here the German/ EU version too.
Now I asked me wouldn't be great to have in some special access points models with an extra function for that DECT functionality or access points only for DECT?

I personally have now a FritzBox at home that is only used for DECT.. I'm not really happy with it since the roaming function, between the FritzBox and the DECT Repeater/ Extender does not work well, which is annoying since it just cancells calls, some people though I just hung up. I was already looking for a better solution but if I want something better the next thing are huge SIP Gateways that are made for like 100's of DECT and LAN/IP phones which I don't need at all for my home.

Not sure if that is planed or will be ever added would be just a nice thing to have. Not sure how much DECT is required nowadays in the home use, since the younger generation mostly doesn't even have a "landline" telephone at home just there mobile phone.