I have not heard of any such plans, Cisco just allowed for integration of CME to IPCCX with CME 4.1 and IPCCX 5.0. If they ever allow for direct integration of CME to UCCE it will not be any time soon.
P.S. You can make the IPCCX a child of the UCCE parent system if that helps.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.