The Coast Guard Cutter Bluebell sits moored on the Willamette River waterfront in Portland, Ore., June 4, 2015. (U.S. Coast Guard photo by Chief Petty Officer David Mosley.)
The following is from the Acquisitions Directorate (CG-9). Note this refers only to the river buoy tender (WLR/WLI). Earlier, CG-9 indicated that the Inland Construction Tender (WLIC) is expected to share a common afterbody with the buoy tender, so I presume there will be many similarities.
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The Coast Guard released top-level requirements for the inland buoy tender waterways commerce cutter (WCC) variant in a special notice Nov. 6.
The WCC program plans to exhibit and present updates at the International WorkBoat Show in New Orleans Dec. 4-6, 2019. The program will have a booth (No. 347) and provide information about its mission needs, status, and desired fielding schedule during a presentation on Wednesday, Dec. 4 from 11 a.m. to 12 p.m. CST. A team of program members will be available to meet one-on-one on Dec. 4 with any shipbuilder that has built a ship that satisfies the inland buoy tender requirements or that could meet the requirements with minor modifications to the ship. The deadline to request a meeting regarding prospective inland buoy tenders is Nov. 18, 2019.
For more information: Waterways Commerce Cutter program page
Chuck Hill's CG Blog 
From the Acquisitions Directorate web site.
https://www.dcms.uscg.mil/Our-Organization/Assistant-Commandant-for-Acquisitions-CG-9/Newsroom/Latest-Acquisition-News/Article/2054900/coast-guard-releases-request-for-information-for-prospective-inland-buoy-tenders/
Jan. 10: The Coast Guard released a request for information (RFI) to inform its acquisition strategy for the inland buoy tender waterways commerce cutter variant.
The Coast Guard is re-releasing its inland buoy tender top-level requirements and is requesting information from any shipbuilder that has built a ship that satisfies those requirements or that could meet those requirements subject to minor modifications. If a shipbuilder has not built such a ship, but knows of a design (built in another shipyard), which otherwise meets the above and the shipbuilder can build that existing design, then the Coast Guard is requesting information from it as well. The information requested includes:
Sufficient data about the ship to allow a thorough comparison against the inland buoy tender top-level requirements.
Ship photographs, drawings, or both.
The name of the naval architecture firm that designed the ship.
Whether the shipbuilder qualifies as a small business under the North American Industry Classification System code for shipbuilding and repairing (336611).
The full RFI is available here. Responses are due Jan. 27, 2020.
For more information: Waterways Commerce Cutter program page