Peter West From Bolt action Australia already gave us the scoop on this but listed now with an image and blurb, due October 2019:

Bolt Action: Campaign: Mariana & Palau Islands
The Mariana and Palau Islands campaign, also known as Operation Forager, was intended to facilitate the recapture of the Philippines and to provide bases for the bombing of the Japanese mainland. This new Campaign Book for Bolt Action allows players to refight the fierce battles of Saipan, Peleliu, Guam, and many others. With new, linked scenarios, rules, troop types, and Theater Selectors provide plenty of options for both novice and veteran players alike.

The new Bolt Action Fortress Budapest Supplement is out now, I don't know anything abut this region and wasn't planning to purchase this book. 

However..., 15 min into this podcast interviewing Bryan Cook the author (and part of a team?) I have ordered. Another one to look forwrad to. :-)

First impressions of my new custom print (cheap) gaming mat. Its vinyl (so yuck) but it was half the price of "the real thing". Ill let you know how it works out, I can already see that there are + and -, its really an exercise, I wasn't sure what to expect.

Also check out this podcast for more detail on mats

Web site: http://www.back2base-ix.com/battle-frame-5000.html

See below for my first impressions video of the Knights Of Dice miniature wargaming case. The "Campaign Case". 

Spoiler: I love it!!

Link: https://knightsofdice.com/product-category/foam-trays-bags/bags-cases/

Fortress Budapest - New Bolt Action Campaign book, Pre-order now on various sites, due out 21 Mar 2019 (or so they say)

No further details that I have found.

A new US infantry boxed set has been released recently by Warlord games for bolt action. Below are some comparisons between the old set and the new. So I guess I will be selling my old set then !! (still on the sprew) Screen shots from this review: https://www.youtube.com/watch?v=0xrOWE9-Cgg