A further renovation between 2021 and 2024 made the station compliant with the Americans with Disabilities Act of 1990 and provided additional entry points.

Following the completion of the original subway, there were plans to construct a line along Manhattan's east side north of 42nd Street.

In July 1911, the IRT had withdrawn from the talks, and the Brooklyn Rapid Transit Company (BRT) was to operate on Lexington Avenue.

In late 2011 and early 2012, the project faced local opposition; opponents claimed the new staircases would ruin the character of 69th Street.

[27] As of July 2017[update], project design was still delayed, due to unresolved conflicts regarding real estate and infrastructure relocation work.

[35]: 16  The latest design moved the street elevator next to a relocated stair at the northeast corner of 68th Street and Lexington Avenue; an engineering analysis confirmed the original location of the proposed elevator, at the southeast corner of the intersection under the overhang of Hunter College East, was structurally infeasible.

The express tracks of the Lexington Avenue Line, used by the 4 and 5 trains during daytime hours, pass beneath the station and are not visible from the platforms.

[44] On small sections of the platforms on either ends, where they were extended in the 1950s, there are blue trim lines with "68TH ST" white lettering printed on them.

[45] Midnight blue I-beam columns run along both platforms at regular intervals with alternating ones having the standard black station name plate in white lettering.

It has been renovated with stainless steel fare control rails and features red accent stripes in the IND style.

[48] Two glass mosaic artworks, Tempestuous Terrain and Liminal Location by Hunter College professor Lisa Corinne Davis, are installed at the station as part of the MTA Arts & Design program.

Both artworks consist of painted and engraved pieces of glass, which depict lines winding through a multicolored field.

[49][50] Outside of the large turnstile bank that provides access to and from the station through the mezzanine, there is a token booth and a passageway on each side separated from the waiting area by a steel fence.

It is flush with the retail facade of the Imperial House apartment building and leads down to an intermediate landing with a small turnstile bank.