It's all tentative at this stage.

Meaning

The plans are not yet confirmed.

Examples

• John: 'So, are we definitely going to the conference?'
• Alice: '<b>It's all tentative at this stage</b>; we're still awaiting final confirmation.'
• John: 'Not yet, <b>it's all tentative at this stage</b>.'
• Alice: 'Have you booked the flights?'