"will likely be delayed" is a correct and usable phrase in written English.
It is often used when talking about something that may happen in the future but is not certain. Here is an example sentence: "The shipment of goods will likely be delayed due to the current weather conditions."
If similar announcements in the past are any guide, however, this will likely be delayed.
It is obvious that both activities will likely be delayed by at least six days.
Monsoon retreat dates will likely be delayed, resulting in lengthening of the monsoon season in many regions.
The plan was meant to come into force in January 2014, but will likely be delayed by a few months at least.
Subsequent trains will likely be delayed, Miller said.
Also, President Obama's new policy for Afghanistan will likely be delayed until the outcome of the Afghan elections.
Alternate-side parking has been suspended for Monday, and there will likely be delays at the airports.
If the court then agrees to take the appeal, Mr. Trantino's release will most likely be delayed until the court decides whether to uphold or reverse it.
The appellate court reinstated the charge, meaning the case will most likely be delayed for several more months as Mr. Vassilenko and his co-defendants appeal to have the charge thrown out again.
— The long-delayed court-martial of the Army psychiatrist accused in a shooting rampage at Fort Hood here will most likely be delayed again after a judge on Wednesday instructed prospective jurors from other posts to return home while the court clears up logistical and legal issues arising out of the defendant's decision to represent himself.
The leaders left it to finance ministers "to agree on the practical details, and the discussions will likely be complicated and delayed," Philippe Gudin, an economist at Barclays, wrote in a briefing note on Friday.
