Yuck. Disliked it the first time, and this may be worse. Time for more math.25-12=13+4=17
Then Ollie joins JLA next year when Dinah is 18
Looks like you'll be getting older Ollie young Dinah
Well, let's see: Connor becomes GA in gen 3 year 6, and if 18 would have been born gen 2 year 3. If he's 18 then, then he would have been born gen 2, year 3, when Dinah is 15. That's the year after Ollie becomes GA, though, so may be Connor is 20 and born year before Ollie becomes GA?
Anyway, Ollie becomes GA in gen 2, year 2, when Dinah is 14. If Ollie's 18 then (not happening, since Roy likely comes the following year with Wally and Dick), he's 4 years older than her. If he's the same age as Bruce, then he may be (if year 6 is Bruce's birth, making him 10 at parents' death in year 16) 6 years older than Dinah (20 at the time of becoming GA, with Bruce being 19 when he becomes Batman). If he's the same age as Clark, then he's 26 when he becomes GA, and 12 years older than Dinah. Actually ends up much better than post-COIE, where he was 15-20 years older than Dinah. As long as they don't make him older than Clark. Still a 12 year gap is not great if she's dating him when 18 though, as years make more difference the younger one is. I'm hoping they go more Batmanish on age.
So math tells me Bruce is likely 19 (if he was born year 6) when he becomes Batman and 21 when Dick becomes Robin. Barry becomes Flash a year after Batman (when Bruce is 20), so will he be older than Bruce in this version to already be a police scientist? I always thought of him as 5+ years younger than Bruce (mid-twenties when debuting, even though he had a ten year college reunion and then later had a 5 year college reunion, so his age was wonky - but they always referred to him as "young" which means under 30 to me). Same issue with Hal.