I wish this had happened.
The USSR still being around would be pretty awesome.
And at least it had not produced those bloody ethnic conflicts in the Caucasus and Ukraine, plus the USSR surely would have prevented the bloody disintegration of Yugoslavia.
Unfortunately, Brezhnev didn't die in the late 60s and ruled the country for others 15 years more, instead of be replaced by reformist leaders that might prevent future Soviet disintegration without using a Stalin-style repression.
PS: A crucial element in the OTL economic collapse of the Soviet Union often forgotten was the sudden drop in oil prices in 1985 and 1986, encouraged by the US and Saudi Arabia to harm the Soviet economy in the beginning of perestroika, greatly helping the economic collapse of communist Europe.
However, a Western economic attack like that would have produced a crisis in the Soviet economy of this AH, but not as severe as in OTL because the Soviet Union was not involved in a bloody war in Afghanistan; it was reforming its economy to state capitalism with instruments free market, because had diversified its economy; and hadn't entered into a crazy arms race to respond to the US project called "Star Wars".
PS2: Incidentally, the last chapter provides a period between 1998 and 2013. What happens in 2013? Maybe see how Lukashenko is replaced by Putin? Or will we see finally a Soviet president who comes from an ethnic group in Central Asia? After all, since the 70s was seen the demographic slowdown of the European population of the USSR while keeping the baby boom of the Asian population of the USSR.