First, the bad news. We knew most of the nerfs since they showed up in the Beta a while back. Well, most of those nerfs made it live to Patch 3.0.3, so let's get this over with quickly so we can move on to the good news. Yes, there's actually good news for Paladins this patch. Seals all get nerfed to varying degrees, the general idea being that they no longer deal as much damage either as a Seal or as a Judgement. Don't ask me for the math, you can check out Boubouille's detailed notes on MMO Champion for the details. All Seals have been nerfed, period. Ouch.
[UPDATE: Thanks to Turkeyspit who reminded me about the change to Judgement of Light, which now awesomely affects spells and not just melee attacks. I told you this was a good Patch for us.]