Yeah, I get that - but most clubs would say "there's a scan taking place on *insert day* and from there there will be some sort of timescale". All we get is "it'll be some time" and we usually only know they're almost back once they're reported to be on grass.
For all Sheaf's injuries we're rarely told how long. Sakamoto's was shrouded in some mystery for some time before it seemed accepted he'll be back for the start of the season. Raphael we haven't a clue other than it's something to do with his thigh.