I fix'd your youtube video so it would display.
Also::
Features Desired
View-From-Behind after commands are issued
This already exists as a battle addon. I don't believe that the sprites or battlers that are displayed are animated, but you can get the view.
EDIT:: I didn't look for this, but the one that I had a while back was interchangeable between battlers or sprite graphics. The sprites you could use any angle, so left, right, back, front, whatever. I assume you'd use the back view. However, they weren't animated like the video.
Features Desired
Set commands for all four players (or three, or two or one, depending on the number of people in the party) before attacks are performed see Figure 1.0
Uhhhhhh....... VX already does this........
EDIT:: Yeah, VX totally already does this.
Features Desired
Cross-hair like battle commands [see Figure 1.0]
This exists as a small battle addon, I've had it in the past, I'll take a quick look to find it again. It's not hard to find.
EDIT:: My bad, but it's not based on Lufia 2 but rather Breath of Fire. I just remembered about a cross hair menu, which this is, however it's not centered, it's either left or right justified. You could probably make a request at the site I'm about to link or here or both, and see if you can get a simple fix to just remove the other information and keep the crosshair and center it.
http://www.rpgrevolution.com/forums/index.php?showtopic=18178&hl=LufiaFeatures Desired
"UP-Magic, DOWN-IP Attacks, LEFT-Items, RIGHT-Defend, MIDDLE-Attack" Battle System
Read my last response, as that crosshair menu is replicated after Lufia 2 so it is the same.Also:: Just if you haven't found it yet or if you're even interested, here's a CMS from Lufia 2.
http://rmrk.net/index.php/topic,31952.0.html