But whether the league can do so, and get anywhere near the 100 percent increase it received last time, is unclear at best.

Whether or not they plan to continue production of the game is unclear at this point.

It is unclear at this point why Fertility has shown up and decided to help.

It's unclear at this time which one will be the new default.

Someone was thinking ahead, though his motives remain unclear at this time.

It is unclear at this time how many schools continue to use the system.

"Or they might be small - it is unclear at this time."

It was unclear at the time who ordered the killing.

The relationship between the group is unclear at the moment.

The prospects for any significant changes this year are unclear at best.