This is interesting. If it is related to the
Free II for 2 years, you would think they would have setup a separate account for your Coral Vista voluntary. With them putting it in your corporate account, it seems it would be free forever. Unless they have plans to pull it back out in two years.
It may be a signal of how ILG is viewing the Vistana acquisition as a strategic move. If you think about how many Vistana voluntary resale units are outstanding this is a huge potential amount of inventory that could be traded within the II system (some of course is being used within personal II accounts) but for whatever reason the owners do not see a benefit to putting a unit in II.
Now there are several types of non-SVN voluntary owner scenarios (there are of course others beyond these I'm sure):
1. Owners with other SVN-eligible units in a corporate developer account but don't use II for their voluntary units
2. Owners with no other SVN-eligible units but use II for trading their voluntary units
3. Owners with no SVN-eligible units but don't use II
4. Owners with other SVN-eligible units in a corporate developer account and who currently do use a personal II account for their voluntary units.
II likes types 2 and 4 because they are a good source of revenue because they are probably more active in II for trading (so more exchange fees). Occasional promotions are run to encourage more clients like this (2-1 deals) and emphasis is placed moving people up to the platinum level.
Type 3 owners could potentially become type 2 owners, so let's offer them a free trial and hope they like trading and stick around.
Type 1 owners are more problematic. They have II for their developer units but don't see the need to open a new paid II account for their voluntary units (perhaps because they always use their week at their home resort). Further, many of them probably use SVN for trading and rarely use II. Since Vistana is now part of ILG, the cost to include these weeks in an existing developer account is negligible and an owner who may not have considered trading their week previously because they didn't want to pay an additional annual II account fee might just do so - providing II with more revenue.
Given this I would not be surprised if owners with SVN developer accounts have their voluntary units included in their II developer accounts on a long term basis. Of course this could potentially mean cannibalizing their existing II owners who have both a developer and personal II account (i.e., type 4 owners could become type 1 owners). I'm sure they've done the math on this and have figured out what will be best for ILG.