There'll be sales, don't worry about that - it just doesn't make any sense for any buying clubs to make offers until the last minute with these players. Everyone knows we're desperate for funds, and a lot of these guys are down to their final year's - if it fgoes down to the last day then we'll pretty much have to accept any offer, or risk another year of big salaries for players we don't want who will walk for free next year.
I'd be looking at Torreira, Kola, Mustafi, Sokratis and Chambers as definite outs, and maybe even a shock sale of Lacazette, if a reasonable offer came in - really don't think he offers anywhere close to value for that £180k/wk contract (and there's been absolutely zero interest in offering him an extension, as I understand it).
Really can't call Guendouzi - you'd like to think that the total lack of interest in him from any top club might have knocked some sense into him, but we'll see. He might have to accept a step down or swallow his pride and ask for another chance.