Ah, that makes sense now.I'm still not understanding this. Jamie's immediate replacement as a companion was Liz Shaw. I hope the suggestion wasn't that Jamie's 21st-century descendant become a companion, because I am utterly sick and tired of modern-era companions.
Well, it's not my comment, but I took it to mean that what he was saying was that if Jamie's immediate replacement had been his son (rather than Liz), that would be corny. But the fact that he would be joining the show decades later, with many replacement companions having come and gone in the interim, would stop it being corny.
Obviously this hypothetical son isn't Jamie's immediate replacement, nobody is advocating time-travel for real to replace Liz in the old show! (I hope!)

Well, there was a time when he traveled with a Time Lady, a teenage Alzarian male, and a robot dog (Romana, Adric, and K-9).And I still don't understand that. It seems to me that, if fans had their way, the Doctor would travel with a knight of the round table, a Time Lord and a Kroton.I am utterly sick and tired of modern-era companions.
Please understand that those of us who started watching during the Classic era are used to an eclectic mix of companions - male, female, human, alien, modern, from the future, and from the past. The nuWho companions have been too much alike and interchangeable.
It would be interesting to see what kind of man Jamie became after leaving the Doctor, since the Time Lords wiped his memories of traveling with the Doctor (except for the one adventure where they met) and dumped him back in the Battle of Culloden.You ever wonder if Jamie wasn't absolutely slutted that every time he ran across London in the future that it wasn't a rubble strewn warzone dominated under a Scottish Flag?
If The Doctor and Jamie met an English Monarch... Would he go for his/her throat?
We knew him as a nice bloke, but he grew up killing Red Coats by the bushel and by the pound.