This isn't a thesis, or a strongly formed opinion topic, I'm mainly just throwing the subject out there and rambling.
I've noted that many SEGA fans (myself included, at times) call for sequels to both long forgotten and recent franchises. While I'm 100% for doing this (though I can't tell you how much it pisses me off to see cries for stuff like Shenmue 3 in a SEGA Facebook post about something completely unrelated), I have to question: is it SEGA's
modus operandi to keep franchises going? Could it be that it is far more typical of them to keep a franchise going for 2-3 generations before moving onto something else?
While there are a handful of franchises that have spanned hardware generations, even up to this day (Sonic, Virtua Fighter, Shinobi, Phantasy Star, Shining series), there are far more franchises that have been retained to a single generation, or at most seeps into the next generation with a few more titles at most (Jet Set Radio, Alex Kidd, Fantasy Zone). There are also the franchises that are very much rooted in one generation, and we've either seen nothing more from them (Space Channel 5), or a single new title generations later (After Burner, OutRun, Golden Axe, NiGHTS, Castle of Illusion, Panzer Dragoon).
In the case of Jet Set Radio, the team has largely moved on to Mario & Sonic and Yakuza. JSR spanning the 6th and 7th generation of consoles, while Mario & Sonic thus far is a 7th generation franchise and Yakuza is a 6th, 7th and soon to be 8th generation franchise.
Panzer Dragoon was very much a 5th generation franchise, with a new title appearing much later in the 6th generation.
I have to wonder, does the developer or franchise creator play a strong part in this? I've noted that SEGA (especially SEGA of Japan) is usually not so quick to develop a new title of a series under another dev team. If that team has broken up, or moved on to another company, the franchise is typically finished. Only to appear in crossover titles (Project X Zone, ASRT) or very rarely being revived in a totally different game (Golden Axe Beast Rider, Zaxxon Escape). In the case of NiGHTS, SEGA had Iizuka around to spearhead a sequel two generations later.
Anyway, just throwing all this out there for discussion.