I am getting the trade.
Despite some mixed feelings on the ending.
Because it reminds me of when I looked into Mark Waid's famous Elseword's story of when Wally 'lost his humanity' in order to spend all his time protecting Central City. Didn't like the concept so never actually read that book.
But, yes, I will get this one if mainly because I am Wally starved and this seems to be the only true Wally West story out there right now or even for the foreseeable future.

That said I'd trade getting Wally back with Linda instead in a heartbeat. The kids (like most every other bit of DC that isn't tied to Wally) doesn't interest me.

I really like the hope angle though. Reminds me of Justice League animated series Wally which for me started the whole love affair.