Today, with the help of a not particularly informative mini teaser trailer posted above, FOX announced the return of the popular '90s primetime soap "90210." But networks mining a popular series for a reboot – particularly from the '90s – is nothing new or novel. I mean, the CW just revived "90210" barely a decade ago. So why are we here?

It's not that the show is coming back; it's HOW that's raising eyebrows.

In the six-episode limited series, "90210" will bring back almost all of the original cast – who, you will be amazed to hear, were available: Jennie Garth, Tori Spelling, Jason Priestley, Brian Austin Green, Ian Ziering and Gabrielle Carteris. Notably missing are Luke Perry, who's currently on a primetime soap throwback of a different variety, "Riverdale," and Shannen Doherty – though, according to Entertainment Weekly, the door is open for a return for them as well. 

OK, that's fun – but that's still nothing special. It's not like this is the cast of "Friends," big names that graduated to other big projects; most of these people have either disappeared from the spotlight  or clung to it via reality shows, Hallmark movies and "Sharknado."

Here's where the interesting part comes in: The returning cast will not come back as their old "90210" characters. Instead, they'll be playing versions of their real-life selves coming back together for – wait for it – a fictional "90210" series reboot, with all of the off-screen and on-screen drama that implies. 

Will this meta twist make for a fun guilty pleasure? Or is this just a mega-disaster, a '90s corpse just dressed up in some new ripped jeans and Keds? I guess we'll find out when the mini-series returns this summer. One thing's for certain, though: Heather Locklear and Thomas Calabro just called their agents to ask about a "Melrose Place" reboot. Wait, we already tried that? Well, served me right for underestimating Hollywood's aversion to original concepts!