Ok.
There are included three types of plugins:
- default - checkboxes (standard and first version)
- flash - this plugin can be modified for any type of hall
- advanced - new and modernized type of default plugin, checkboxes are hidden and it also allow to modify design of hall
There is also posilibility to add there also own plugins modified for your use. But flash or advanced will be probably possible to use. There can be only problem with right side of image you posted here. Flash allow rotation for seats, but not for the whole section. So seats can be rotated, but will be set in axis.
Advanced plugin is html + css. It can be modified with css3 (for new browsers) and probably there is possibility to rotate the whole section.
But as lubi said. There are finally no limitations.