If we're talking about how we'd like to see the classic series given a new prominence, I'd much rather see the missing episodes animated, a la
The Invasion.
Color isn't going to do much to make the older shows more accessible. Even if they somehow could remaster them in 3-D, it's still not the kind of story-telling that's going to grab a lot of new viewers.
And that Menoptera convinces me--these are stories where the visuals aren't exactly the most compelling aspect, if you know what I mean.