The 20380 corvette most likely has a phased array radar.
I would say the next Russian DDG will be more multirole (ASUW/ASW/AAW) and inline with the DDG-51 class vice the Sovremenny (ASUW) and Udaloy (ASW) mix. I have not seen anything yet.
I believe Russia will concentrate on frigates and corvettes as they need to build their surface fleet to show and maintain a worldwide presence. Russia needs this quickly and inexpensively. Their building programs should develop a new cadre of naval architecs, weapons systems engineers, yard workers, etc. This should lead to advance projects, however may take some time.