I would very much like to be able to format task titles. I can see that there have been various previous requests but I couldn’t find out whether they were considered by the devs, and if so what the reasons were for not incorporating them.
Obviously, I wouldn’t want a full blown list or a similar formatting on a task title. Stripped-down Markdown as used in the asana forums can be a great starting point. You can also look into Todoist for inspirations.