What does it mean when she says "we'll see about that"?

[Anonymous]

we met online dating and my bio was "no one can beat me at FIFA :P". when we matched she said "I can beat you at FIFA :p"
then we talked about other random stuff off that topic. she took a long time to reply tho (like hours at times) so I brought up the FIFA joke again and said "its gonna be fun beating you at FIFA :P" I kinda sent that late (around 1am) and then next morning she replied "lol We'll see about that" . now I don't know what to reply.

what that a subtle way of stopping the convo because she lost interest or is she still interested and I make a move like ask her out?

please give opinions and answers too on what I should do!

Lost interest, move on

She still has interest, ask her out

[DP0122]

“We’ll see about that” means that she highly doubts you’ll beat her, so I’d still say she is interested in you, ask her when she can play

[Anon-ymous1]

Uh dude tell her to put her money where her mouth is. She's making it easy for you.

[Anonymous]

She is competitive so ask her out and call her out on it on whether she can beat you at it