The only thing they did last season to cause an outrage was replace the season 9 Vicious gear with new season 10 Vicious gear, without warning people. Hence, in the transition week before the new season, everybody spent their honor on gear that was replaced with better stuff a week later.
They will be doing this exact same thing again, and it has been clarified by a blue post (5 mins of searching will find it, I found a couple easily enough). There is no way they will release the season 11 Honor gear BEFORE the start of the new season. The only bit that's sceptical at this point, is the start date of the next season and the release date of the next patch (these two events also potentially unrelated).
Edit to say, yes I get your point, nothing is set in stone with Blizzard :P But this time they have given people warning about the new gear, and so everybody knows to keep 4000 HP for the start of next season (maybe
)