No I don't think he will be "bad", I just think Cyrax/Smoke are clear cut Top Tiers unless their frames turn out to be bad (which would effect all variations) because of character tools and MKX. Too many people are saying "wow look at that zoning" like we're about to have a rebirth of MK9 Freddy. In this game the Kobu Tanya's, the Demo Sonya's, the Johnny's, the Liu's, etc, are the ones that are obvious Top Tiers because heavy overwhelming offensive tools is what makes top tiers in this game. The zoners in MKX play like Kenshi, Cyber Kano, Kitana, Mystic Ermac, Necro Shinnok, etc. The rushdown in MKX plays like 90% of the Top Tiers.
Cancels into pressure, a good OH, restands, HardToBlockables in one form or another, combo starting armor are the tools to Top Tier in this game.
If Sektor has a good OH, he'll only have one of the five. Every Top Tier character in this game has at least 3/5 or 4/5 of those aspects. Not a coincidence. Zoning with some rockets that only hit mid and high looks good on paper, but won't get you as far up a tier list like A-List Cage offense can.
Sektor will possibly be "good", while Cyrax/Smoke will possibly be great to godlike with minimal to no bad MUs. A couple of Smoke Bombs into full combo will kill the hype by March 2nd. Cyrax doing Cyrax things will bury it.
After the incoming buffs he may become "Unstoppable". Meanwhile-
Smoke vs Sektor = 2-8. Book it.