Well for sure, though it also depends just how ugly this labor dispute gets. There could be anything from an actual transaction freeze to a super-slow market. Arrieta and Harper signed so late they couldn't report in time to spring training. That will happen this time too, so if there's a 1 or 2 month stoppage lots of players will still be unsigned until it ends, in April or May.
Plus, would both sides even agree to operate under the current CBA for QOs and arbitration?
And of course for a team like the Phillies that still probably needs to be up against the CBT threshold and are good MLB soldiers, they're not likely to set the market (and if they do it will be for a position player).
Regardless, they'll probably be shopping in the $10-14 million aisle (i.e. someone like Tajuan Walker, whom they missed this last time) rather than the Charlie Morton or multi-year aisle. Will just have to be someone better than Anderson/Moore/Velasquez.
Like I said I also think you could get someone via trade. Even Moniak or Haseley might get you someone useful. Hoskins definitely would (though his absence is making a strong case to keep him). Didi might with enough $. And then there's Bohm (though he might go in a Buxton deal, if they go that way).