http://wiki.oni2.net/Anniversary_Edition/Framework

The globalization process
When first running the Installer, this is a one-time process that takes the
vanilla .dats in Oni's GDF and breaks them into thousands of .oni files in
folders like Edition/GDF/level1_Final. Next, the Installer combines those
folders of .oni files into singleton, large .oni files, one for each level, in
Edition/install/VanillaDats/. Note that no data has been modded yet, just
reformatted. This process of pre-compiling the data results in a large speed
increase over previous recombination methods.

The mod installation process
Right after this, the Installer prompts you to choose some mods to install.
When you hit the Install button, the Installer starts off by deleting the
existing .dat/.raw(/.sep) files in Edition/GDF to start from a blank slate. It
then iterates through each mod package you selected, and sends a command to
OniSplit to combine the singleton .oni for that level (in VanillaDats) with the
.oni files in whichever packages have files meant for that level. The final
.dat/.raw(/.sep) files are then created in Edition/GDF. 

-1) AEI-folder has to be able to be moved to another machine including
downloaded mods, OniSplit etc so that it can be distributed as an offline
install

*) Open package folder from mod list (also menu options for other folders like
gdf)

0) OniSplit
Download/Update from depot. Perhaps even without a shipped one
(-> globalization after downloading onisplit)

1) Dependencies
Would be nice if in the future we could at least give a warning when a mod
requires another that isn't available (and of course allow write dependencies
for the new mods).This would help very much in some mods that require others.
For example the china mod requires about other 3 packages, and it will crash if
they aren't present. This would at least warn the user of that.

2) Mod-Depot access
Another thing that would be awesome but can be a little tough to program would
be that the installer would show the latest mods from the depot with a short
description, plus maybe the most downloaded mods. In addition install and
download them directly from it would be even more interesting.

3) Supply new tools
I think the new version should contain the latest oni split version plus maybe
the latest vago/ae tools too.
* Onisplit latest version and scripts vago gui or/and demos's gui and lukas
creator's oni levels unlock should be included.

4) Switch supplied mods
We should see which mods are more used right now that aren't included with the
edition. For example I see that perceptible blood is kinda popular between the
players, even if the edition already comes with another soft blood version.
Dunno if we should replace that one with the perceptible blood (which is more
anime style in my opinion).

5) Update supplied mods
There are a lot of outdated mods in the last Edition things like brutal AI,
New Characters and Andrashi Melee System I think, which should be updated to
the last version.

6) Order in mod-list
AE installer should list mods ordered by numbers rather than by alphabetical
order. Arranging by package numbers makes related packages ordered after each
other and makes it easier to identify which will overwrite which.