I know that there are a few more classes which would be added before Kobolds, but it seems that they get a huge fan group. Now, i want to add myself:
There are 2 races i'd like to add too. Another race has already sprites also.
Sahuagin:
Yes, Sahuagin. I mean, it'd look cool, and would be viable. +2 INT, +2 STR and -2 CHA and -2 DEX should be good. +4 to swim, +2 to hide, listen and spot. A bit like here, but something changes: http://www.d20srd.org/srd/monsters/sahuagin.htm
Dragonborn:
They were in 3.5. I'd love to play with this, and definately would buy it. +2 STR, +2 CHA and -2 DEX. Can be changed. They'd have +2 to elemental damage saves, +2 fortitude save. Here some info: http://www.dandwiki.com/wiki/3.5_Dra..._Supplement%29
Of course, these are suggestions. Sign if you want, i just wanted to say it here