Public meetings will be held at Forum North next Tuesday and Wednesday to obtain public input.
The LGC has given the WDC an April 15 deadline to apply for any changes.
The WDC is also looking at how it could improve "grassroots" representation through ratepayer groups or community boards.
WDC chief executive officer Mark Simpson says Maori representation is also an important issue, with options including Maori seats and committee structures.
After April 15, the LGC will determine its preferred option for Northland. If change is involved, then a draft proposal would be developed and publicly notified.
Public submissions on the draft would be considered and the commission would then decide whether a final proposal should be issued and notified. If a final proposal was issued, a poll on the proposal can be requested by 10 per cent of the electors in any one of the affected districts within 60 days.
If a poll is held, 50 per cent of those who vote in it must support the proposal to trigger change.