Welcome to the forum, Captain!
Personally, I'd like to hope that the Typhoon wasn't the last 1/24 kit from Airfix.
I believe Airfix are resting the rest of the range at the moment, while they focus on activities to get HH "back in the black"
Subject choice is always a crucial thing and as others have mentioned here the older 1/24 kits are getting a bit long in the tooth, so, yes, it would be great if Airfix were to re-tool their Spitfire, Hurricane, Me109 and Mustang kits. With the modern techniques available in tool making these days, it is possible to now create molds with the ability to produce more than just one variant too.
I have one 1/24 kit in my stash, the excellent Typhoon. I have been reluctant to add the older kits in the hope that one day, the range is re-tooled and I am hoping it is the Spitfire!
On average 1/24 kits take around 5 years to bring to market, given the Typhoon came out in 2013, it means that something should be due soon-ish.