Making the Kiev class and Yak-38 more credible against NATO

How should a Kiev-class carrier and its Yak-38s be modified for a possible war with NATO?

Keep Kiev's principal weapons and enlarge its aviation capacity if possible, while substantially improving the Yak's engines, radar, and targeting links.

The Kiev's major weapons would largely remain because they provide much of its striking power. A somewhat larger hull and air group are preferred. The Yak-38 is considered the more demanding problem, requiring better engines and radar. Missile targeting would also need a suitable data link and dependable communications. The extent of those changes could amount to a new generation of Yak rather than a modest modification.