Ok so let's say I get a bloodline though Dragon disciple I don't get the arcana but gain access to the bonus spells added to my spells due to a feat. The robe treats me as 4 lvls higher for bloodline powers.
So Im treated as being dd +4 LVL sorc for the bloodline powers gaining the bloodlines breathweapom at d&d LVL 5. I'm hoping I'll get acess to the extra spells too but I make the assumption that I won't get those until my sorc LVL or dd LVL is equal to the sorc LVL of the bonus spell. However if I take a LVL of sorc I'd get access to 11th bonus spell as a dd +1 sorc?