This falls squarely under the blanket of "there are bigger fish to fry."
Shanghai Disneyland - $6B
NextGen - $2B (depending on who you ask)
Disney Dream - $1B
Disney Fantasy - $1B
DCA Expansion - $1B
New Fantasyland - $400M (depending on who you ask)
No, with those things on the radar currently and in the last few years, I think it's safe to say that Bob Iger doesn't give a flying fart about a Journey Into Imagination refurb, nor should he. Even if a project like that was greenlit, it's something that would barely warrant any of his attention. Imagination is one piece of Future World, which is one piece of Epcot, which is one of four theme parks, which are one component of Walt Disney World, which is one piece of Domestic Parks, which is one piece of the Theme Parks & Resorts segment, which is one piece of The Walt Disney Company, for which Bob Iger is responsible in its entirety.