I þink ðæt ðe english language would benefit greatly by using some of its original charæcters to represent sounds ðæt are still in use. Ðis would make spelling a bit more phonetic, in addition to looking really cool.
Proposed orþogræphic reforms.
It might also help increase the revenue streams of the keyboard makers, as everyone scrambles to pick up a new keyboard with the requisite added new characters.