The phrase "almost undoubtedly will" is correct and usable in written English.
It can be used when expressing a high level of certainty about a future event or outcome, while acknowledging a slight possibility of doubt.
Example: "Given the current trends, the new policy almost undoubtedly will lead to increased productivity among employees."
Alternatives: "most likely will" or "very likely will".
By taking a big charge all at once and not having to take regular write-offs of good will down the road, AOL Time Warner will almost undoubtedly focus attention on its bottom line.
Sometime during Sunday's final round, Bob May will almost undoubtedly hear someone say this: Who's that guy playing with Tiger Woods?
Unlike Ben-Gurion, Sharon did not succeed in creating an ethos or an organization that would continue his path; his new party, Kadima, is less than two months old, and its founder will almost undoubtedly not be on its first electoral slate.
In a move that will almost undoubtedly result in some grumpy phone calls, UK handset retailer mobiles.co.uk has just put up a placeholder product page for the as-of-yet unannounced Desire Z.
WASHINGTON -- If legislation expanding background checks for gun purchases is to make its way through the Senate, it will almost undoubtedly need near-universal support among Democrats.
Just like the demise of brick and mortar music stores, video stores, and even book stores due to Amazon, video game retailers have seen a decrease in physical game sales that will almost undoubtedly continue at a faster pace as technology makes it easier to acquire games digitally.
Once the exploit is made public, Apple will almost undoubtedly begin shipping hardware with revised boot roms eventually (last time, it took seven months) — but until then, expect a whole lot of jailbreaking to go down.
Tesla's legions of fans undoubtedly will point out that almost every company's SEC reports include risk disclosures, and for the most part, they're boilerplate.
