There answer to your question is that yes, it's possible. People have done it with events in RM2K before the days of RGSS. Is there a script for this? Currently not, no (at least not for VX Ace, but I don't think I've heard of one for XP/VX either.) It's also highly unlikely one will be made in the near future.
However, people need to stop equating the questions "Is it possible?" with "Is there a script for it?" If you REALLY wanted to make a TBS game, you could do it yourself with events. If you aren't willing to put in that kind of effort, honestly I don't expect you'll get very far with a regular RPG let alone a strategy one.
Not everybody is familiar with what you can do with events, so they first ask if there is a script. These days, it's easier to ask for a script then learn to code, apparently. Back on the VX site, a forum was dedicated with event tutorials on how to create all sorts of features just with events (variables, switches, common events, and pictures). Airship Interiors, an event long before I saw a script for it. Likewise, dungeon escape items, teleports, stealing, blue mage magics, lockpicking, and even character selection/classes, I learned these first as events before I saw them as scripts.
The end result is a system you can design and control for your own game, vs a universal script that may not be compatible. While there are some decent event tutorials still around, I have not seen quite the number that was available back on the VX site, and it's one of the things I miss.