It's nothing new unfortunately, those jingles have been in use on Tony's Sunday evening show ever since it started in March (though Radio London didn't join the show until April).
Ah - thanks! I don't normally listen, was just flicking through the Sounds app for something to listen to between the football matches. The first hour from 6pm is London-only before going out to other stations, so hearing the new jingle at 7 made me hope that change was coming! Oh well.
Yes it's a slightly odd arrangement where Tony does Soul on Sunday (pre-recorded) on London from 6-7pm, while on the other stations he's live doing Hits and Headlines, then they all come together live from 7pm. Meanwhile he's also on KMFM from 4-7pm, meaning from 6-7pm he can be heard presenting three different shows all at the same time!