Well, I'm biased because I feel like I've really come into my own these past few years that I've been living under the 30 umbrella. But this is just my way of saying "come on in, the water's fine!" I'm probably going to stop aging soon. Maybe I'll just turn 32 again next year. XD
Once things get assigned, we should look at the calendar together and see if there's something we can throw Katie and Marcus into- or by that time I might have my other characters down and we can try something else?
With her own friends not being around, Delilah may stick by Katie a little bit more than she would have in another world, just because avoids being alone as often as possible. She might even offer to be a stand-in for Angelina for Katie & Alicia (even though she is sooo not as cool as Angelina Johnson, whoo-boy), and even use her really bad impersonations?
OH, and Delilah wants to be the next Rita Skeeter (only nicer!) someday, so if she knows he's from the ~future~ she might ask Teddy sometime if he's seen any good articles with her name on it.
And there may be a series of long confusing questions for Rose after Delilah learns about the many Doctors and the Tardis. (These questions might be dumb because I have only seen a few episodes of DW, and know very little about the universe)