Although I'm not opposed to 'reunion tours' in general, some bands cannot 'reunite' unless all original members are included. The Doors would be one of these bands. The Doors were basically Jim Morrison and some other blokes.
That's just as bad as The Smiths without Morrissey. (Or Marr to a lesser extent)
Some bands could get away with it, the Stones being one of them. If any member popped off at any given time they could be replaced and life would go on as the Stones...yes, even Jagger. This is becasue all the band members are pretty much rockstars in their own right, whereas some bands are only as big as their front man/woman, and the Doors come into that category...IMHO of course.
ABC!!! Funny you mention them as we played Lexicon of Love just last night. What a great album that is, and I say that knowing some will mock but you can all feck off!