the betting is that

the betting (line) is (that)

It is pretty likely that (something will happen or something is the case). That new intern is a nightmare. The betting line is that she's fired before the end of the month. I hear we're supposed to get over two feet of snow—the betting is school will be cancelled tomorrow.
See also: bet

the betting is (that)

It is very probable or likely that. Many analysts agree the betting is that the economy will get much worse before we see any meaningful improvement. We've all been wondering about the price. The betting is the new premium smartphone will start around $1,300, which would make it the most expensive phone on the market to date.
See also: bet

the betting is that

it is likely that. informal
See also: bet, that