Four new incarnates slots are viewable on Beta right now. You can see some screenshots here
http://boards.cityofheroes.com/showthread.php?t=254147
I believe the answer to question 2 is yes.
thx 
, i saw master zabs great work of screens, but i didn't knew if they meant to go live in i20
defiant only
@amartia
my public list : http://cit.cohtitan.com/profile/9355
there is no info about these two topics in overview page, and i would like to ask if there is any from another source :
1) Will i20 unlock the next incarnate slot?
2) Will we be able to get shards even if we exemp? (as stated by the devs before)
defiant only
@amartia
my public list : http://cit.cohtitan.com/profile/9355