You can't blame the developers that you invested in heroes that don't have an awakening yet. Either raise those with an awakening now or keep waiting until the next batch get's announced and released.
I know, but they are releasing awaken heroes too slow... 3 heroes are awaken per month? Then we will have the 45-50 heroes in 1 year and a half or a little more... it's just too much time... In the mean time if new content is not released then everybody will leave before we even have all the heroes available to be awaken.
I think they are doing well 3 heroes per month.There are players who havent reach the lvl 90 yet, it dont will fair if low player reach lvl 90 and after a numerous heroes to awaken, its my opinion, i thnk they release awaken on the heroes that doesnt are too good to make them good.
btw u should upgrade heroes with Awaken option, if you like some heroes who doesnt have this option yet they cant do anything, its your choose and the second option be patient and wait for more Awaken Heroes.