Thanks, I was about to give up, couldn't find it.
![Big grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Well I'm not going to assume DPC just "forgot" what he wrote one episode earlier, doesn't seem like something he'd do. And as
Wizard_Shiryuu has pointed it out, the use of "next year" in a different context could be due to the language barrier. I haven't considered that because my native language has the same words just like in English and during 6 years of university I've never heard someone use that term referring to calendar years when the topic was school related.
I'll just go cry in a corner now.