True dat. ROTJ wound up having TWO working titles before it was eventually finalized. And of course the easiest title to figure out was that of Episode III, and that just seemed very obvious. Hell, people thought that this new movie was going to be called A New Dawn, and that wound up being the title for an EU comic or book IIRC. What I've been seeing is that the title is set to be announced at SDCC this summer. So we should know in about two months.
The Ewan McGregor talk has been somewhat interesting, as far as him reprising his role as Obi-Wan. But how to do it in a way that makes sense? After all, Obi-Wan Kenobi's Force Spirit resembled him at the end of his life, as played by Alex Guiness. How do you justify Ewan McGregor playing that Spirit Guide to Luke now? One thing that came to mind is that in his exile on Tatooine Obi-Wan spent time making a holocron about the Jedi Order as a tool for Luke's training. This is something that could be done with Ewan McGregor, although I think it would work to best effect if he's made up as if he's 10 years older than when we last saw him at the end of ROTS. And let's face it...where is Luke really going to learn about the history of the Jedi if there is to be a new Jedi Order? It has the potential to make sense from a plot standpoint.
...Just an idea!