All the developments are now ready for use - including the new tower overlooking the burial mounds.
However, when that will open depends on what rules are being imposed for social distancing, because there are narrow staircases leading to the top.
Mr Collinson said many visitors - particularly if they were making a long journey to visit a property - welcomed the chance to book in advance, so they knew for certain when they could get into the exhibitions at a time when they were not too busy.
But while Sutton Hoo would inevitably be the main focus for many visitors, other sites in Suffolk should also benefit.