Well welcome to the forms Dipstikk and even though your question has been asked alot I still don't mind answering it (hey at least you didn't ask if MO was ever going to be on PS2!)
Anyways here goes....
The Abe with four fingers was the original/final conceptual design for AO. Slightly after AO realease in other parts of the world, OWI was informed that four fingers symbolized the subclass in Japan, due to the slaves working in meat packing plants (just like Abe) and frequently had one of thier fingers cut off. Now thiers a law in Japan that says their can be no four fingered characters and if thier is you have to pay a fee to keep it that way. To make it short OWI didn't wanna have to pay a fee to keep the finger so they hired to Vykker surgens and vwala!
Edit- Yeesh looks like Xav got to it befor I did, oh well...