Here are a few options, ranging from slightly less formal to more formal:

• Han överger kyrkans stillhet för djungelns fiskevatten. (A more direct translation, slightly less formal but still acceptable)
• Han lämnar kyrkans frid för att bedriva fiske i djungeln. (More formal, using "frid" and "bedriva fiske")
• Från kyrkans ro till djungelns fiske. (More concise and poetic, implying a shift in focus rather than a literal departure, suitable if the context allows for a less literal interpretation)
• Han byter kyrkans lugn mot djungelns fiske. (Simple and formal, emphasizing the exchange)

The best option depends on the specific context of where the title will be used. If it’s for a news article, the slightly less formal options might fit better. For a more academic or reflective piece, the more formal options are preferable.

Formal options for "Spännande storstadsliv i hjärtat av Spanien":

• Pulserande metropolliv i Spaniens hjärta (This is probably the closest and most natural-sounding formal equivalent.)
• Ett spännande storstadsliv i hjärtat av Spanien (Adds a definite article making it slightly more formal.)
• Storstadens puls i Spaniens hjärta (More poetic and concise, suitable for a more literary context.)
• Mitt i Spaniens hjärta: ett dynamiskt storstadsliv (Emphasizes the location first.)

The original title is already somewhat informal due to the word "spännande." The options above replace it with more formal synonyms like "pulserande" (pulsating) or "dynamiskt" (dynamic). Using a definite article ("ett") also contributes to a more formal tone.

Here are a few options for a formal Swedish translation of "Ny ordförande i Mellby Gård – sonen tar över", ranging from slightly less to more formal:

• Ny styrelseordförande för Mellby Gård – sonen övertar posten. (This is a good, generally formal option)
• Sonen efterträder som styrelseordförande för Mellby Gård. (More concise and slightly more formal, emphasizing the succession)
• [Sonens namn] tillträder som styrelseordförande för Mellby Gård. (Most formal and avoids the slightly informal "sonen," assuming you know the son’s name. Replace "[Sonens namn]" with the actual name.)

The choice depends on the specific context. If you’re writing a press release or a formal announcement, using the son’s name gives the most professional and weighty impression. If it’s for an internal memo or less formal document, the first two options work well.

Here are a few options for a more formal Swedish title, keeping the "Dune" reference:

• Nyanser av Arrakis i Dramatens depressionsskildring: This translates to "Shades of Arrakis in Dramaten’s portrayal of the depression." It’s more formal and uses a literary allusion rather than a direct comparison.

• En anstrykning av Arrakis i Dramatens iscensättning av den stora depressionen: This translates to "A touch of Arrakis in Dramaten’s staging of the Great Depression." This is also quite formal and emphasizes the theatrical aspect.

• Ekon av Arrakis i Dramatens tolkning av depressionens tid: This translates to "Echoes of Arrakis in Dramaten’s interpretation of the time of depression." This option uses evocative language and focuses on the historical period.

• Arrakislika stämningar i Dramatens gestaltning av den stora depressionen: This one is a bit more direct but still formal. It translates to "Arrakis-like atmospheres in Dramaten’s depiction of the Great Depression."

It’s difficult to say which is best without seeing the actual performance. If the connection to Dune is visual and atmospheric, the first three options are stronger. If the connection relates to specific themes (e.g., resource scarcity, political intrigue), then the last option might be more suitable.

Here are a few ways to rewrite the title "Nu avgörs det – Kiruna eller Uppsala blir kulturhuvudstad" in Swedish, depending on the nuance you want:

Formal:

• Beslut fattas: Kiruna eller Uppsala blir kulturhuvudstad
• Avgörandet: Kiruna eller Uppsala utses till kulturhuvudstad

Slightly less formal:

• Nu faller avgörandet: Kiruna eller Uppsala kulturhuvudstad
• I dag avgörs det: Kiruna eller Uppsala blir kulturhuvudstad (very similar to the original, just slightly more formal with "I dag")

More dramatic/exciting:

• Spännande ögonblick: Vilken stad blir kulturhuvudstad – Kiruna eller Uppsala?
• Klimatet tätnar: Kiruna eller Uppsala – vem tar hem titeln kulturhuvudstad?

The best option depends on the context and the style of the publication.