I mean, as for myself, those kids DO look a bit older( 11-up years old perhaps, instead of the usual 9-10 issued in the previous seasons )... well, nothing wrong with that, as we saw something like that happen before, with adult instance versions of themselves acting in some different episodes!
Actually, we loved that^^
If they were supposed to actually be, say, two years older, WHAT happened in the meanwhile?
Well, I guess that it should be explainded in the movie, at last!
But what do YOU think happened between the end of "The Journal" episode and that possible two-year gap?
It was, for most of us some sort of enjoyment on wonder what could our should happen in TJM, someday in an indefinite future that, though rather unlikely, it did NOT prevent us - our hope was too ,much strong for let anything like that happen, too; well, even I did some theoriies myself and put those in some fanart/ficart, but I know people who actually spent whole fan fics, comics and short animations on those!
I always thought that all those musings and fan work were most enjoyable, as much it could be the actual cartoon; I´m sort of a fan of fanwork( that actually most of the times was that brung me into )as much for an actual show
With that, most of those proposals will need to be put aside, as TJM will construct an "official reality" once again - personally, I´d still will love all of those fan efforts made out of love, and would find so very sad to see anything like that being put aside; that´s one of the reasons why I though we should start a group like this: to compile and showcase fan works on the many "worlds" of HA!
So, I´m proposing to ask you to wonder once more; let´s restart... or, actually, keep doing as we always used to do^^