Hello,
Wally and YJ were both brought back from Pre-Flashpoint.

However this happened in different ways:

-Wally restored the memories of the Titans by touch etc.

-Bart,Conner,Cassie still have their memories
Arrowette is strange, since she REMINDS BART????

I have to say that I LOVED how it was done with Wally, while I DONT LIKE the YJ way.

I mean Wally,Superman and maybe also Barry remember his whole history.
(I dont know if Barry reminds Wallys kids)
But Superman mentioned Linda and their marriage.


Wally was pretty much straight and simple, while Conners memories are more vague and I dont understand if Cassie remembers Pre-Flashpoint TT or NEW52 TT.