Which agents benefit from the map pool change?

Abyss and Corrode out for Lotus and Fracture.

TL;DR: Neon, Fade, Brim, Raze could go up; Omen, Sova, Astra, Waylay could go down.

Looking at Masters, the highest-picked agents were Viper, Omen, Sova, Neon, Astra, Fade, and Waylay. (not counting Yoru here cause his nerf is going to change things anyway)

Viper's pick rate will probably not change too much. Corrode was a good map for her but Lotus is also. I don't see the changes making a big deal.
Omen might go down a little, like Viper, Corrode for Lotus is not much of a difference, but he had 72% pick rate on Abyss and Fracture traditionally is not an Omen map.
Sova will for sure go down, he sucks on Lotus and Fracture (unless EG comes back), and he was close to 100% on Abyss.
Neon will see a big boost, Corrode and Abyss were two of her worse maps and I think Lotus and Fracture are two of her better ones.
Astra had Abyss as one of her best maps, I don't see many teams playing her on the new maps except for maybe Boaster.
Fade was strong on Corrode and not picked at all on Abyss. Lotus was one of her best maps and Fracture should be strong too in this meta, so I could see her pick rate increasing.
Waylay is the question mark. Abyss and Corrode were her two best maps easily, so it comes down to whether she gets picked on the new ones, but I could see her picked less.

This of course doesn't take into account other factors, like the Skye buff and Yoru nerf that could see Waylay and Neon, for example, rise anyway, and potentially Fade/Sova seeing less play.

Some other agents: Brim will rise for sure, Raze might as well, potentially Vyse too? We've seen teams run her in this meta and Fracture/Lotus were two of her better maps.

Omen never goes down

Lotus is gonna be a good map for double initiators and Chamber players.

Retaking that map and holding or retaking A main space for split B hits or A Hits is gonna be insanely good with Double initiator.

And Chamber is just good in general and has always been strong on lotus with the multiple dumb angles he can hold and that's even better for teams that won't run double initiator they can't clear him easily.

I think Fracture is going to fit into the whole double duelist slam hits waylay + Another duelist combo.

Should be interesting to see what teams come up with playing waylay on this map.

And if your playing against a Double duelist comp playing double initiator retakes are the best thing against it IMO I expect G2 and NRG to at least go for the double initiator angle.

Omen will go down because even crutches won't pick him on Fracture over Brim. Some teams will still go Astra, and some will try to make Miks work before giving up. Double controller will lean toward Harbor as the year progresses.

Lotus will be 100% Omen. I'm curious if Tejo will see more play since his missiles were very good for early space, but unlike on Pearl you kinda have to commit both rather than just one.