As per this announcement all Legendary heroes should be there, but I could not see the mentioned ones in your list.
Later Petri also mentions the addition of 5 star heroes.
I could not check the list myself, as my HA is running at the moment.
I know some will have costumes, but I think based on this announcement at least the non-constumed version should be available there.
In the Version 44 release announcement nothing is mentioned about the Legendary heroes.
It is just mentioning the 3 and 4 star heroes only:
Maybe it is just some missed point ?
I have asked Staff for clarification.