I have tested this myself, All currently ACTIVE abilities fit into your code archive. If you intend on keeping all the Zen Mastery and now 10 or so abilities that can not be used. That is entirely your descision. All active abilities fit into your code archive however I should mention that now that mail is non-deleting you effectively have a very large player to put stuff. But that not withstanding with discussions about abilities taking place internally "cough" "cough" Org "cough" Abilities "cough" "cough" I have brought the limited Code Archive space to the attention of the Devs.
There are current 448 Active abilities that can be placed into the code archive and only in the neighborhood of 520 spaces available in your Code Archive.
