Ella, Fiji relies very heavily on tourism for its survival and prosperity. Consequently the government says it is doing everything in its power to get things back to normal as soon as possible.
Today (Apr 4) the tourism ministry published photos of Denerau Island resorts with the caption "open for business".
In addition the Fiji Hotels and tourism association says they are ready to accept guests for the Easter weekend. Airlines are accepting in-bound passengers once again, the airport is open.
I have personal experience of a similar situation from a couple of years back. my family were booked to visit a resort on Denerau (just outside Nadi) a few days after cyclone Thomas passed nearby. We were at the resort 3 days after the cyclone hit. The resort showed no signs of damage - although Thomas had passed by 100 kms away rather than straight over. They're very quick to make everything right for visitors.
If you're concerned, you should call your hotel and ask them for a report and an assurance that all services are back to normal.
Actually, as I'm writing this the Australian Government has issued a statement saying it's lowered its travel warning for Western Fiji to "exercise a high degree of caution", so it appears they too believe visitors are relatively safe from the after-effects of the flooding.
Beware though that cyclone season in Fiji is officially November to April, but that's 'officially' and mother nature doesn't always run to a strict timetable, so keep an eye on weather reports. However, in mid to late April (when you're going) it would be very unusual to see another cyclone.
Even if it does rain a bit, it'll be warm rain.
Phil at the safety hub about 6 years ago