From Legends you've missed one obvious one: Nicol Bolas. Dakkon Blackblade could also still be around, being an planeswalker of sorts, if Korlash is from the future. There's also a whole bunch of dudes we know pretty much nothing about, like Angus McKenzie, Axelrod Gunnarson, Bartel Runeaxe, etc. who technically could still be alive, given we don't know when they lived.
On a meta-level though, I doubt Wizards would want any of these to return. The set Legends just feels ancient, so I would keep its legendary creatures in the past. It was already pretty odd to me when Legends II suddenly moved a whole bunch of them into Mirage era times. I would put in some references (Church of Angelfire quotes in the flavor text, Korlash traipsing around, etc.), but I wouldn't use the characters themselves, outside of Bolas.
Nah, I didn't forget Bolas and Dakkon
. I just ignored planeswalkers because they aren't bound to Dominaria, so I also didn't list Karn or Liliana. And with Bolas, Karn and Liliana, it's not like people need to be reminded they're still around. With Dakkon, I'd assume he's probably dead unless stated otherwise because of the Mending. And what you're saying about the lifetime of some of the people from
Legends was exactly my train of thought as well; suddenly revealing them to be around in modern times kinda defeats the idea behind the set. I like to think that Dakkon got killed in the Planeswalker War (that's possible for all we know, right?) and that his Blackblade was lost somewhere in Corondor until Korlash found it (or will find it).
I recently had the idea that the second coming of Gabriel Angelfire could be explained by saying he was off fighting the legions of Hell/the Pit/the Abyss/the Underworld with a host of angels. Basically some epic perpetual battle between good and evil that's going on on another level of reality without anyone on Dominaria noticing it. You know, like the thing that's alluded to in
Angel of Vengeance in
The Colors of Magic. Would be awesome to have him landing in New Benalia or in an iconic location like the Heroes' Monument and declare that the forces of chaos have been pushed back and there will be peace in the cosmos for a very long time until the demons strike back again. Then he'd be like "Behold! The music of the spheres is in harmony again!", make everyone hear the sound of the universe in their heads and everyone would burst into tears, prostrate themselves and worship him. No idea what could be done with him beyond that point, though
.
The last known location of Kaervek's prison was in the same Mwonvuli temple that Mangara was kept in. So he's most likely outside of the time stream as well.
Ah, fair enough. I re-read most of the original sources for the lore behind
Mirage block recently, but that must've slipped through. Well, someone could still battle
Jolrael over the Amber Prison.
Still, I personally really want the next Dominaria story to revolve around Teferi trying and succeeding to bring back North-western Jamuraa (at some horrible cost). That could bring him back. As well as pretty much all the Mirage/Visions legendaries. Asmira and Purraj are presumed dead, and Hivis and Zirilan retreated back into the great desert and were thus probably not phased out, but Hakin, Telim'Tor, Jabari, Rashida... they were last seen only a few years before their entire continent was phased out, so who knows.
Same here, I think that has great story potential. I guess it could even carry at least two blocks' worth of story. Set one, show the surrounding areas in Jamuraa and Teferi's efforts to bring back the lost piece. Set two, the missing piece has phased back in, focus on all the old places and people that are back and on the consequences it had for the rest of Dominaria. Set three, the Zhalfir from four hundred years ago suddenly finds itself facing conflicts with the surrounding nations and peoples, a new Mirage War starts, possibly instigated by Kaervek. Set four, the war and its resolution, Teferi defeats Kaervek. Or something like that. It's not going to happen but the story material would be there.
Man, looking through all the Legends reminds me of old Phyrexia.com, where every once in a while people would compile these list of which characters were dead or were they were last seen...
That sounds like a useful thing. At the very least, I think a list like that really speaks to the imagination and helps to see untapped potential.