This isn't about season-to-season. It's about day-to-day. There are typically 50+ players listed on the Trade Block at any given time and the list changes often between the start of the off-season and the trade deadline. And I check it almost every day during that period.
It would be nice not to have to sort through all the players to figure out which, if any, are new since the last time I looked at the list (which was probably yesterday). Just give me a quick sort or a flag so I can tell right away.