Its too early to say about how they will fix and mix this kind of things but I think that, you will recibe the skills based on the awaken char that you become.
IF, you do this from Stone of destiny, you will be an a warlock (human summoner), with the stats of the orcs mistyc, so, IF the diversifications come, you can only "change" to "Wynn warlock summoner", with the racial skills of an a orc (and his stats).
The same thing happen to all the awaken toons by an a stone of destiny.
Sigel - Phoenix Knight
Tyrr - Duelist
Othell - Adventurer
Yul - Saggitarius
Iss - Prophet
Aeore - Cardinal
Feoh - Archmage
Wynn - Warlock
If i had to make an educated guess and if i remember correctly. When using the stone of destiny it changes your base stats/skills to a human. I know when I changed from a swordsinger to a yul archer it gave me the hawkeyes base stats of a human. So i would think IF you DID use the stone of destiny that it would give you the base stats for whatever human class you would have been to get to your awakened class
IE: for you it would be human necromancer stats.
Now remember this is just all a guess on what i think it would be for a logical and clear way for it to work. Now this is NCsoft so who knows what will happen :P