Hi everyone!
As you may be aware, Special:Forum is being retired and all Forum content will be moved over to Discussions. All of this will take place before migrating ESB to the UCP. This will be happening soon.
Discussions has recently received a wave of interface improvements to make the feature more comfortable for Forums users, thanks to awesome input from Forums communities and admins.
When ESB has Forums content migrated, the transfer process will render the Forum into a read-only state.
While Discussions does not support wikitext, a special converter is being used so that ESB's old Forums posts will look basically the same with the same formatting and templates after they have been migrated, with a few very rare exceptions. Note that editing old Forums posts and comments with wikitext on Discussions will break the formatting.
Check this archived thread for some frequently asked questions, but otherwise let us know any questions or comments you may have about this.
Thanks guys!