Ｗill Dragon Disciple get any more feats or abilities beyond level 20?

I noticed that Dragon Disciple won't get any cool abilities beyond level 20. That's kinda unfair isn't it? What's there to compensate for the loss of less high level spells cast per day? I am talking about less Level 7~9 spells and HLAs. More spells cast at these levels out weights all the current feats for DS. Besides, unlike the other classes, Sorcerer's HLA aren't special abilities that cast from a different tab. We use our level 9 spell slots to cast them.
So -1 spell cast per day actually hits even harder at higher levels. Will there be new feats added to DS beyond level 20?

Thanks for reading this. I am a player from Taiwan and sorry if I make any grammar mistakes.