From this link
https://fm.en.navyfield.com/Community/Forum/View.aspx?num=6263&searchtype=0&pagecount=0&searchvalue=rough+plans&sort=5&category=C01&page1=1


HA battle mode

You couldn’t play the Harbor Assault because you don’t have any fleet or you are in a small fleet? Then this upcoming patch will help you, because we are planning to open a new battle mode, simply titled: HA battle mode. The main system will function the same as the current HA, but of course, we will need to fix as many bugs as possible so our players don't have to stress because of this. We plan to set this on our test server in late February and will try to put this on our live servers in either March or April.

HA Upgrade

While we are adding HA battle mode, we will also fix the current HA mode. This is a very unstable mode at this moment as many of you may know, so we will put all of our efforts here to allow our players to enjoy future Harbor Assaults without any stress. This is under the development stage at this moment, so I will get more information about this to announce to our players as soon as possible. We hope the first patch related to this will be in the first semester of the next year, but it will be patched continually.

Achievement system

If we refer to HA as community content, we might call this achievement system personal content. Many achievement titles are being prepared with different levels of difficulties, and rewards for players able to successfully accomplish some of the achievements. This is under the design stage at this time, so a few details may still be altered later, but we expect to give players achievement points which could then be used for special purposes in the game – for example: new event ships, special naval guns, and so on. We expect to have this patch available November on our live servers. If we receive more information about this, we will update right after.

Do we have any updates on these? HA battle mode looks like it was slated for March or April. Here we are in May, and still not here.  This would break the monotony of always doing GB.