But I really think they need to order more Grigorovich sized vessels. Proper frigates, just like the Chinese Type 054A-class. Atleast 20 of those. Although I noticed many of their heavier (mostly upcoming) "corvettes" are basically light frigates. 24 VLS, that's not a corvette, that's almost a frigate (a good thing, obviously).
You are right about Grigorevich class, now with engine issues resolved this class has become viable agan but are also getting long in the tooth.
What they need to do is to give them Steregushi/Gremashi/Derzkii "treatment"
They need an upgrade but one that does not make too many changes and gets done fast. They need to keep the hull and propulsion intact and make changes to upper part of the ship to trim down radar signature, add another UKSK set and update sonars, radar and weapons with off-the-shelf products (Palash and maybe even Redut if it doesn't break the bank)
Also there is one important thing to remember when discussing Gorshkov class frigates: we have no idea what their actual build time under current conditions is
because nobody has managed to clock it properly yet.
Think about it:
-construction started in 2006 during zero military financing
-had God knows how many bureaucratic delays in the early days (remember Ivan Gren?)
-Ukrainian engine problems as usual
-standard development problems on top of all that (like Redut performance)
Second vessel had similar issues. Those issues are now pretty much resolved but it will not be until third ship is completed that we will know how much actual time is required to build Gorshkov class frigate.
Just something to keep in mind when throwing timeframes around.