is there really a "risk" for 1st round picks not coming over though? Honest question, I can't think of any the past few years.
Usually the drama is with the mid to late round guys IIRC.
Taking a really quick at a random period of time....2013 - 2019, it seems like every first round pick drafted in the out of the Russian leagues has come over to play in North America. It's still a bit too early for the 2020 and 2021 drafts, but here's how it looks for that period of time:
2013:
-Valeri Nichushkin - 10th overall: Came over immediately and played for the Dallas organization for about 3 years...then went back to the KHL for the 16-17 and 17-18 seasons...then came back to play a year with Dallas and is now with Colorado
-Marko Dano - 27th overall: Not a Russian player and not a Russian team (Slovan Bratislava), but I'll count him because Slovan was in the KHL when he was drafted so he was technically drafted out of the Russian league. I remember Dano getting thrown around in quite a few trades. But in terms of coming over to North America, Dano played his d+1 year in the KHL and then came over to join the CBJ organization...still playing within North America as of last season (with a loan to the Slovak league for covid I presume)
-Nikita Zadorov was the other Russian player drafted in the 1st round, but he was drafted out of London of the OHL
2014:
No players drafted from KHL or Russian Juniors in the 1st round. Nikita Scherbak and Nikolay Goldobin were drafted at 26th and 27th overall respectively, but both playing in Canadian Juniors at the time.
2015:
-Denis Gurianov - 12th overall: Another Dallas pick. Gurianov played his d+1 with the KHL and then came over to play in the Dallas organization for his d+2 year. Gurianov is still playing in the Dallas organization as of last season.
-Ilya Samsonov - 22nd overall: Goalies take a little longer, but Samsonov played his d+1, +2, and +3 seasons in the KHL. He was pretty much always on the radar for Washington but he finally came over to North America for the 2018-2019 season. Samsonov is still playing in the Washington organization as of last season.
The other Russians drafted in the 2015 first round were Ivan Provorov (7th overall) and Yevgeni Svechnikov (19th overall). Both were drafted out of Canadian juniors.
2016:
-German Rubtsov - 22nd overall: Drafted out of the short-lived Team Russia U18 program (the same team as Mikhail Maltsev), Rubtsov played his d+1 year with Podolsk of the KHL and then came over to North America to play in the Q later that year. It's really unfortunate the direction his development took after he took an incredibly dirty hit that gave him a massive concussion. Rubtsov played in the Philadelphia organization from 2018-2020 and just recently went back to play with Sochi of the KHL.
The other Russian player drafted in the 2016 first round was Mikhail Sergachev (9th overall), who was drafted out of Winsdor of the OHL.
2017:
-Klim Kostin - 31st overall: Kostin was drafted from Dynamo Moscow of the KHL and came over to play in the AHL immediately for his d+1 season. He hasn't quite cracked the NHL line-up for St. Louis but he's still playing in the STL system (with a brief loan to Omsk of the KHL this past year).
2018::
-Vitali Kravtsov - 9th overall: Kravtsov played hi d+1 year with the KHL, then came over to play in 2019-2020. He ended up playing in the AHL and I guess he wasn't too thrilled with that, so he ended up going back to Chelyabinsk for the 19-20 and 20-21 seasons. He will be playing next season with the Rangers NHL team (and even got to play 20 NHL games at the end of last season).
-Grigori Denisenko - 15th overall: Played his d+1 and d+2 seasons in the KHL. Denisenko came over to North America for the 2020-2021 season where he split time between the NHL and AHL.
The other Russians drafted in the first round in 2018 were Andrei Svechnikov (2nd overall) and Alexander Alexeyev (31st overall), both of whom were drafted out of Canadian Juniors.
2019:
-Vasili Podkolzin - 10th overall: Podkolzin played his d+1 and d+2 seasons with the KHL and just recently signed his ELC (back in late May), so he'll be playing in the Canucks organization starting this upcoming season. I would presume he'll be on the NHL team.
Still too early to tell for the 2020 and 2021 drafts.