The singer/guitarist last got back together with on-off bandmate Pete Doherty in 2010 for the Reading and Leeds Festivals.
"Seriously, what band has taken the libertines mantle (sic)?" Barat asked on Twitter.
"I mean, it's been a few years, what is the difference between a stone roses re-union and a libertines re-union?"
He added: "Well what can I say? Is another reunion pushin it? I'm up for it...? I'm not joking, it may take a while. We'll see what happens... xx
"Unless there's a band of rather more cultural significance? but tell me, what bands represent england now? Fair point, there are loads of fine british bands."
Last year Barat dismissed rumours that The Libertines would play together in 2012.
Doherty this week cancelled a string of festival appearances after admitting himself to a rehabilitation clinic in Thailand.