According to the BBC
The report is saying that the Treasury and the BOE are in discussions about extending Mark Carney's tenure as BOE governor beyond June 2019 - his current final month of serving.
This very much reaffirms the FT's report this morning here. The BOE governor post is fast becoming a topic of "gossip" among central bankers and the market as the BOE struggles to find a suitable candidate to replace Carney.
Carney has previously said he was unwilling to serve beyond his already-extended tenure to June next year, but the report above says that any extension to Carney staying on may be much less than a year - that's likely aimed at trying to entice him to take up the offer I figure.