"may be disruption" is a correct and usable phrase in written English.
You can use it when something unexpected could cause an interruption or stoppage, such as during a meeting or event. For example, "We must prepare for the possibility that there may be disruption due to bad weather."
Commuters are advised to check their journeys before travelling and have been warned that there may be disruption caused by the hot weather.
He admitted, however, there "may be disruption and a decrease in choice".
The Southeastern train firm also advised passengers to make checks before setting out, warning: "Given the weather forecast, there may be disruption on some routes through the day".
The UK government has recognised that there may be disruption to the supply of some fresh food from the continent if a no-deal Brexit leads to delays at ports and airports.
One possible mechanism of (retrograde) interference in motor learning may be disruption of motor memory consolidation processes.
Interference was not observed when the competing task was practiced 4 hours after initial motor practice suggesting that one possible mechanism in the observed interference effects may be disruption of consolidation.
The term "undue hardship" also means that "some hardship is due, so there is often a cost associated and there may be disruptions," she said.
Aside from the possibility that innocent athletes may have been punished, there may well be disruption in international athletics similar to 1980 when the U.S. did not participate in the Olympics and 1984 when the Soviet Union did not participate.
Short term, though, there may be some disruption as administrators discount Comet's stock to clear.
There may be some disruption during the process, but we hope it will happen early enough to have minimal impact.
People in the Republic of Ireland are being advised that there may be some disruption to health services over the next few days.
