I don't have a problem with them becoming more global as long as they find a way to fix their main shows. Although I think foreign markets would more so appreciate an authentic, homegrown WWE product with an American identity, than a superficial one constructed to appeal specifically to their particular market.
As for further growth, personally; I believe they need to find a way for the unbelievable depth of talent on their roster to have great matches on a regular basis. They have an untapped well of incredible, under used talent.
Hear me out, I understand that as a business WWE has an agenda supporting its goal of making money; this is of course the goal of any business - to make money.
On their path to controlling their competition and making money WWE has signed a wealth of the best talent in the world, talent they continue to underutilise.
The amount of fans worldwide who respect technical wrestling is being underestimated, and to give those fans an annual event with a main roster, premium feel would be the perfect gift to a sometimes under appreciated fanbase; and I'm sure that if done right; with consistently high quality matches: it would get people talking, create hype and draw attention to the product.
In 2017 a really great technical wrestling match has the ability to make the entire zeitgeist of wrestling talk (Omega v Okada, Ospreay v Ricochet) creating hype, passion, opinion and drawing attention to wherever that match took place: this is something WWE is not currently taking advantage of to further its own product or brand.
Also, they could place this tournament in that post Mania lul period, a time of year not much happens during anyway.
I think that having signed some of the best technical wrestlers out there WWE should find a way for them to perform great matches. A show/tournament for wrestling purists but with a main roster feel. A show which takes both main roster and the best NXT talent and puts them in a tournament together in a multiple day festival of great matches: like King of the Ring and NJPW's G1 rolled into one.
A tournament over many days in which great 5 star matches happen every day. With enough of the main roster having roots in indie/puro/Lucha/technical wrestling WWE could put on either a weekly/monthly show/annual tournament to showcase the very best its entire roster has to offer.
For example, this could be the list of talent in the tournament this year:
Group A
Cesaro
Akira Tozawa
Seth Rollins
Tyler Bate
Gran metalik
Kevin Owens
Johnny Gargano
Kassius Ohno
Neville
Finn Balor
Group B
Aleister Black
Shinsuke Nakamura
Cedric Alexander
Drew McIntyre
Rich Swann
Hideo Itami
Sami Zayn
Pete Dunne
AJ Styles
Roderick Strong
Set up a points system for a win, 10 wrestlers in each group; then switch from a group system to a knockout system as the bottom of each group is eliminated each round. Give everyone lots of time for their matches, remove all in ring restrictions; just let everyone put on the best match they can every match. Match quality is the primary goal here.
I guarantee an annual tournament such as this would get the wrestling world talking every year, fans would love it; wrestling purists would love it: and it would allow WWE main roster talents who come from that indie/technical wrestling scene (Seth Rollins, Sami Zayn, Finn Balor, Cesaro, Kevin Owens, Nakamura) the chance to re-connect with that fanbase at its root, and generate a fresh buzz in it without leaving the WWE unbrella.
It would also allow WWE to make full use of their talented roster, it would generate buzz for NXT; and I'm sure it would facilitate growth within a certain fanbase as the general quality of match put on would get people talking: create annual hype - and maybe even drive up network subscriptions.