Without going too far into fanfic or "fantasy booking" territory, I think the best plan would be to have the company be a huge international conglomerate, use the old cast (that will show up) as cameos, and focus on a newer team of veterans and rookies. There's the option to really tap into a blue collar vs. white collar dynamic and "forgetting where you came from" and maybe even some satirical poking at '80s tropes and unnecessary sequels, wrap it all up in a PG/PG-13 package, and then create some new big bad demonic force to contend with, complimenting and adding to the established canon and general mythos.
I'm expecting 2 hours of horrible "wink wink" jokes and a shyte subplot about Twinkies being temporarily extinct.