If, via an undetermined but relatively near 1991 POD, the USSR avoided collapse until at least 2019, what would modern military equipment look like? Expenditures would be higher in both the US and USSR, and nuclear proliferation would be far greater. A greater focus on conventional warfare might change the path of the development of equipment as well. Another affect of the increased budgets would be economies of scale for expensive, high tech projects that IOTL have very few completed units.
The Warsaw Pact may or may not partially or fully collapse, look at all of these possibilities if you want.