Just checked the recruit screens - looks like a new heroic mode.
Feature characters: Psylocke, IM40, Cap, Wolvie**, Hawkeye (modern), and Thor***
5 days, 6 hrs remaining on the packs
Good spot! 
They are called “Unstoppable” packs, so presumably the Juggernaut prologue - could be an interesting 1 with scaling, as it includes a fair few 3 v 1 missions which would constrain to facing L230 Juggernaut on his own rather than with 2 L230 allies.
Hmm - not a guaranteed 3* Thor in the 10 pack, but instead “triple the chance of 3* Thor”…
That sounds promising to me, since I have bought 10 packs and don’t like getting 1 good cover then 9 Captain/Hawkeye covers - hopefully better results from 300% chance?
~ Update
An info button next to the 10 pack! 
DROP RATES PER DRAW
https://api.demiurgeserver0.net/drop_table/unstoppable/
CHARACTER 10 PACK 1 PACK
Thor (Modern) 14.29% 4.76%
Psylocke (Classic) 4.76% 4.76%
Iron Man (Model 40) 4.76% 4.76%
Wolverine (Astonishing X-Men) 25.4% 28.57%
Hawkeye (Modern) 25.4% 28.57%
Captain America (Modern) 25.4% 28.57%
Yep - Heroic Juggernaut just popped up.
Post the rewards please.
That’s a odd character combination you can use.
Pretty dumb event… I have a 26 man roster and only 4 available characters for this event, none of which have decent levels
…I just sold my 5/5 Black Widow to make room for Lazy Thor. Now I just have a 2/5 lvl 1 Widow.
Not that a lvl 30 BW could survive any hits from Heroic enemies anyway.
Yeah… they could at least have buffed Black Widow and maybe 1 or 2 from the 2*s. I have a maxed Wolvie, but all the other chars for this event I have are < Lv40.
What will people do without their 5 blue Spidey crutch this event?
Use lots of health packs. Probably.
Opening prize on the Solo Juggernaut fight is a 3*** Hammer target lock… Huh?
Progression prizes are rather weak as well, max reward is a 2nd Unstoppable Recruit token.
On the other hand… each round of Heroic appears to offer a set Modern Thor covers as placement prizes…
Oh lord, more limited cover events, how fun. Having lazythor as the only way to do well in this event probably isnt going to please most people…
If 2* storm and obw was allowed, this event would make 10x more since.
Looks like they are bringing back the super boosts for events. Or is it just some stackable +10% damage thing?
Yea I give up with this event already rubbish roaster, rubbish prizes
LOL, the really want me to dump some ISO on IM40 or captain. Might even work, I saved 52k and can get tempted to use some if stuck. IIRC you can by many early levels on just 10k.
The starting battle looks nice featuring the full-covered thor at 200+ levels. 