That was always the plan. Tony Lee is doing a massive 18-part story arc that will take us up to the end of the 10th Doctor's time.
Not a surprise, but I already have issue #8 where she reappears.
"Voyager" (no "u," despite what the CBR article says) is a sixth Doctor story, not fifth. Written by Steve Parkhouse, art by John Ridgway. Brilliant stuff. I love it to pieces. The comic adventures of the sixth Doctor in the 80s are so much more interesting, better written, and more consistent than the JNT/Saward-led adventures on television. (And I say this as someone who really only dislikes "Lameshit.")
No real surprise as they announced this back in February 2009 but it's still nice that they're sticking to their plan. In some respects they're going to fall behind a bit, but then again as some people seem to be convinced that Matt Smith is going to become the Doctor Who equivalent of Conan O'Brien, they could be in a good position to benefit by being the only outlet for new Tennant-related stories.
Again no surprise as she appears at the end of the most recent arc and so we know she (and UNIT) will play a part in the next storyline. It'll probably just be a one-off appearance, though, otherwise it'd mess with continuity too much. Personally, I'd rather they go back in time a bit and give us another Donna story. Or even a Rose story.
As already corrected, that's the Fifth Doctor. Marvel already issued a fully colored graphic novel of Voyager back in the 80s, so it'll be interesting to see how the new versions is handled. Hopefully IDW will also issue The Age of Chaos, the Doctor Who miniseries Marvel put out back around 1989 that was written by Colin Baker. It was never published in North America.
