baldig
imminent
Happening or occurring in the near future; coming soon.
Ich wünsche Ihnen eine baldige Genesung und hoffe, Sie schnell wiederzusehen.
I wish you a speedy recovery and hope to see you again soon.

imminent
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imminent
Happening or occurring in the near future; coming soon.
Ich wünsche Ihnen eine baldige Genesung und hoffe, Sie schnell wiederzusehen.
I wish you a speedy recovery and hope to see you again soon.

'Baldig' (imminent) is the adjective form of the adverb 'bald' (soon). It is used to describe a noun that is expected in the near future.
Wir erwarten eine baldige Entscheidung in dieser Angelegenheit.
We expect an imminent decision in this matter.
The adjective 'baldig' (imminent) is used almost exclusively before a noun (attributive use). Using it after the noun as part of the predicate, e.g. 'Die Genesung ist baldig' (The recovery is imminent), is very unusual and sounds unnatural.
Der baldige Frühling lässt die Temperaturen steigen.
The coming spring is causing temperatures to rise.
'Baldig' (imminent) is often used in formal or written contexts in fixed expressions. Common combinations are 'baldige Genesung' (speedy recovery), 'baldige Antwort' (prompt reply), and 'baldiges Wiedersehen' (seeing each other again soon).
Wir bitten um eine baldige Antwort auf unser Schreiben.
We ask for a prompt reply to our letter.
late
'spät' and 'baldig' stand in a temporal contrast. 'spät' describes a point in time that is after the expected or agreed time. 'baldig' describes something that is supposed to happen in the near future. 'spät' is used very often in everyday life, for example with delays or times of day. 'baldig' sounds more written or somewhat formal and usually comes before a noun, for example 'eine baldige Antwort' (a prompt reply) or 'die baldige Genesung' (a speedy recovery). In short: 'spät' looks at a point in time that is too late, while 'baldig' looks at something that is expected to come soon.

Die Ärztin wünscht ihr eine baldige Besserung.
The doctor wishes her a speedy improvement.
Wegen des Staus bin ich zu spät zum Termin gekommen.
Because of the traffic jam, I arrived late for the appointment.