DHCP leases etc I think not, at least without swithing from dnsmasq to full dhcpd. Wireless peers and (per interface) data counters should be possible as is. Packet capture (to see DHCP requests [in case dhcpds logging is not enough]) would be possible but is kinda overkill to support in mobilehotspot itself, if you need it you know how to do it from the terminal. So the information is sort-of available but it's spread around. List of wireless peers is the only thing I'm at the moment planning on adding to the frontend at some point.