Obviously I will have no idea what I'm talking about in my opinion here.......but that's never stopped me before!
Remember the saying: "Think outside of the box." ?
That was what I just tried to do in thinking about this.
Instead of a PyPRP plugin........we have the Uru Blender. This version of Blender is exactly what Aloys just mentioned. Stripped of everything that we can't use for making Ages.
Part of that makes a LOT of sense. Then you'd have Newbies like me and others not trying to use functions of Blender that don't work for Uru and then coming here and bawling our eyes out about it. (okay, well I bawl my eyes out about it anyways.....).
So that would be a point in it's favor.
Then again, what Paradox mentioned. Let's say they come out with Blender 2.46. Okay, now how do we use the new version of 2.46? Wouldn't that require a complete rewrite of the Uru Blender?
Then again, will upgrades to Blender affect what we do? I'm trying to think of what changed between 2.44 and 2.45 other than the fact that the latest plugin will only work with 2.45. And I'm drawing a blank. Blender still seemed the same to me. It was the Plugin that changed a lot of things.
I can think of many things that doing this would make easier. You only have to download Uru Blender and install it to get started. Not Blender, the Plugin, Python, etc, etc (at least that's a therory there) and have to install them all, then follow a tutorial just to get Blender set up to do Ages.......
A Uru Blender that not only allows you to create your Age, but has something like PlasmaShop also installed for writing your scripts right there, and compile them into your .bak file.
A Uru Blender with an assistant that pops up when you're trying to do something: "No no no no! Not that way! Is this Andy trying to do something again? Stupid Maintianer! THIS is how you do it........" you know.....something helpful like that....
Of course, not being a programmer and knowing just enough script to get myself in a LOT of trouble, I could be like a little kid wishing for a pony here.....but still, I think it'd be a great idea.