Sorry, but there is not real roadmap with date written is stone.
This repository is a best effort, community work.
BTW, I don't plan to remove the packages soon.
PHP 5.4 and 5.5 are still there, but will received only fix for "critical" security issues.
For PHP 5.6, it is now maintained in a shared effort with some other PHP dev in
https://github.com/Microsoft/php-src
As 5.6 is still very used (really too much, around 1/3 of the download), I think it make sense to continue the effort.
But with more versions to build (5.6 to 7.4, and 8.0 coming) this is really a huge work.
Check for announcements (comments) on https://blog.remirepo.net/post/2019/02/ … .6-is-dead
In all case I recommend you migrate to a supported release as soon as possible, in the next "months"
Desktop: Fedora 37 + rpmfusion + remi-test
Laptop: Fedora 36 + rpmfusion + remi (SCL only)
Hosting Server: CentOS 8 Stream with EPEL, rpmfusion, remi