Panel 2: Wow, more retcon confirmation! The Little House With a Yard For John's Trains! Funny thing, though; I can hardly see the period, so at first I thought he was saying "That little house I've always loved. That little house over there!" like some early-20th century poet.
Panel 3: No comment, except that April is suddenly the same height as when she was 10, or even younger.
Panel 4: Except room for April, of course.
Panel 5: Oh, silly me; it's ELLY who almost gets forgotten. But does that mean April wasn't including Elly when she said "you"? Or maybe she did; maybe she meant "Would Mom be okay with it?" and that reminded John that he's married to Elly, not April*.
*Yes, we've discussed this earlier. Rest assured, I am not reading any lust into John's attitude towards April. However, I still think he places her WAY above Elly in his priorities, and that grates on me. I mean, look how they're leaning towards each other in panel 4, like they're newlyweds contemplating buying their first house.