Its been in a little while now so feel its time to say I like the new arena setup.
Please be aware I am speaking as an EU player, enjoying the one one arena with bigger numbers and the scrapping that generates and having no hassle flying with the peeps i choose to fly with.
10pm comes, I can choose to play the log in log out shuffle but mostly take the hint to do summat else for abit before before bed.
How the arena split effects the peak hours crowd may be different but dont feel qualified to comment on that for obvious reasons.