If you could bring back any racial bonuses, powers or attributes from previous TES games what would you want to see?

We do have racial powers. Your racial power is being born into a faction and it not being a choice.

each race will have its own skill tree, i think he is asking what people would like to see in certain trees

Spot on...

Alliance-based trees would be welcomed too.

Something like this.
http://www.gamesas.com/topic/1317953-funner-lore-friendly-ish-racials/?fromsearch=1

For me, it 100% depends on end-game. If as a healer, you have to balance healing power and magica regeneration, the Highborn skill would allow me to maintain effectiveness while boosting power.

I expect racials to be close to what they are in the TES series. They won't be OP as some of them are (like the Breton magic resist racial), but I feel that they will keep them fairly close to what they are from the series but greatly balance them so they aren't OP or UP.

Well if you'd like to contribute to a fine discussion able topic such as this, it'd be helpful if you'd actually join in. Instead of post a non-related & uncontrollable to a consumer like ourselves.

Anyways onto the OP's topic.

To be honest, this is quite vague but I'd like to see the racial's from Morrowind back as they had some nice idea's and fit well with the lore as well as time period.