Nah i still have hope, but the dialog this chapter isn't looking good. At the very least we know that as they are yet, they can't beat BM since she apparently already had them defeated, with the ending chapter resolving around them aiming at not allowing her to go to the roof even if they had to die, so the only possibility now is for them to gain power-ups, maybe with Kid awakening adcoc for example
Also the chapter titel also make it not better for Kid and Law, a "VS" titel always lead the end of a fight, meaning the fight is ending next chapter.
Which open up the question, do people believe that Big mom lose in next chapter so fast without even using awakening? Do people really think Oda handle Big mom this fast? Well I can't imagine this, the only way how Kid and Law could get a W is that they throw Big mom out of Onigashima, with is a semi W for them.
In the end neither BM or Kid&Law get a L, Big mom will still up and not defeated,Kid and Law would throw here out and successful their mission.
That is the only way how Kid and Law could get a W in the next chapter. Or Oda really let them lose, for sure the fight is ending next chapter.