Are there plans to introduce another AP item with MR, given the Abyssal changes? (Diana player here)

As someone who likes to play Diana, I'm feeling hung out to dry with these changes, since being unable to go Abyssal first is a massive blow to a lot of AP matchups. She really benefited from the flat MR reduction (since she has good bases), the MR (since she has a shield), and obviously from the AP. The only other major AP item with MR, Athene's, simply isn't an attractive buy and doesn't provide the same all-in focused stats. It's basically looking like I'd have to go echo first in every AP matchup, which is a massive hit to laning against AP champs that can harass Diana easily... which is basically every ranged AP. I don't really feel like I can itemize in any similar way to compensate; the best I can expect to do is maybe rush echo and hope to kill them faster (which isn't desirable because it costs so much more and gives no defensive stats).

Also, unrelated, but... is Riot expecting a triple AP meta or something with these Abyssal changes? Double AP was huge on TT for a while, so it's hardly impossible for AP-focused comps to become meta, and this version of Abyssal keeps triple+ AP comps from falling off -far- too well, especially if you have something like Ryze's AoE MR shred and Cass/Ziggs DPS. I'd be pretty afraid of it.