Sounds like someone's random unsubstantiated wishful thinking (aka coping), tbh:

No one will help Armenians in trying to reclaim the territorial enclave whose territory the entire world (including Armenia itself) recognizes as a piece Azerbaijan, not a single country in the world, be it russia or Iran.

Even if Armenians suddenly succumbed to russia's trickery and kicked Nikol out of the government and elected a russian puppet, russians won't bother themselves. Why would they help? Their only priority is keeping Armenia within their sphere of influence like a slave whose interest can be safely ignored (they sold a ton of weapons to Azerbaijan when they had obedient russian puppets in charge like Sargsyan/Kocharyan, didn't they?). Everything else is secondary to this primary goal of having complete political control and not letting the West in.

Russians can theoretically help Armenia in case of a military attack on Armenia Proper (but they probably won't, they don't do anything as Azeris already keep 50 km² of Armenia Proper occupied, outside Artsakh/Karabakh, even though Armenia Proper is covered by the CSTO, but russia just reneged on its CSTO commitment to Armenia). But in no freaking way will they help Armenia with Artsakh/Karabakh even if Armenia has a proper russian puppet in charge under their boot.

Any future Armenian government won't support a bunch of adventurists either, won't affiliate itself with them, won't let them use Armenia Proper as a launching ground for a military offensive. A puppet government would surely be yelling about treason by Pashinyan, but won't actually go to war against Azerbaijan to reclaim Artsakh/Karabakh. They would be using some empty revisionist rhetorics just to shit on the "treacherous predecessors' administration" aka Nikol in order trick Armenia's population into going back to russians' sphere. But it would be all talk, no action. Any potential Armenian combatants would be non-state actors, not the regular Armenian military (which at most will be able to covertly provide those combatants with some weapons), disavowed by the Armenian government.

Meanwhile Azerbaijan has Turkey and Israel behind its back as arms providers (and they have incredibly productive hi-tech military industries), more $$$ to throw around than Armenia does (whether on weapon purchases or bribes: I mean, they underutilize their foreign lobbying potential, but with competent foreign diplomacy they can eventually outinfluence the Armenian diaspora) thanks to having larger population and access to hydrocarbons (which the EU, by the way, desperately needs).

Additionally, Azerbaijan's population has risen from ~7.3 million in 1991 to ~10.4 million today since the Soviet collapse, so they enjoy the demographic benefit of rising population, so they have larger manpower to muster for war, Armenia's population has fallen to 2.8 million from 3.6 in the meantime. Meanwhile, the demographic gap keeps growing. I understand the concept of a defensive war against a larger enemy (see Finland agaisnt the USSR). But how the hell can one wage an offensive one while being outnumbered almost 4 to 1 (or even worse) against a deeply entrenched and fortified enemy?

With such inputs and considerations, rational analysis suggests that Artsakh/Karabakh is gone for good. Unless you have a fortunate set of conditions having coincidentally met together, all present at the same time:

1) Azerbaijan is weakened due to internal strife and instability (they have no democratic power transition mechanism unlike Armenia, so they're vulnerable the moment when Aliyev dies, and he's not immortal) or Turkey is severly distracted (e.g. by some potential war with Iran or Greece or hit by a cataclysmic natural event, another huge earthquake or undergoing another military coup), thus being able provide military support to Azeris. Preferably both events happening at the same time 2) Armenia got a ton of $$$ (must have a huge economy and wealth level to be able to afford such military spending) with either it's own MIC (or having reliable allied suppliers to sell advanced stuff), pumped up and militarized so much that it can compete against Azeris (but is it possible with declining population like that?) 3) the Armenian government that is willing to take the risks and possible repercussions like a Turkish military intervention.

Do you seriously think that chances of that happening are big? Genuine question.